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The Greek alphabet has been used to write the
Greek language Greek (, ; , ) is an Indo-European languages, Indo-European language, constituting an independent Hellenic languages, Hellenic branch within the Indo-European language family. It is native to Greece, Cyprus, Italy (in Calabria and Salento), south ...
since the late 9th or early 8th century BC. It was derived from the earlier
Phoenician alphabet The Phoenician alphabet is an abjad (consonantal alphabet) used across the Mediterranean civilization of Phoenicia for most of the 1st millennium BC. It was one of the first alphabets, attested in Canaanite and Aramaic inscriptions fo ...
, and is the earliest known
alphabetic script An alphabet is a standard set of letters written to represent particular sounds in a spoken language. Specifically, letters largely correspond to phonemes as the smallest sound segments that can distinguish one word from another in a given ...
to systematically write
vowels A vowel is a speech sound pronounced without any stricture in the vocal tract, forming the nucleus of a syllable. Vowels are one of the two principal classes of speech sounds, the other being the consonant. Vowels vary in quality, in loudness a ...
as well as
consonants In articulatory phonetics, a consonant is a speech sound that is articulated with complete or partial closure of the vocal tract, except for the h sound, which is pronounced without any stricture in the vocal tract. Examples are and pronou ...
. In Archaic and early Classical times, the Greek alphabet existed in many local variants, but, by the end of the 4th century BC, the Ionic-based
Euclidean alphabet The history of the Greek alphabet starts with the adoption of Phoenician letter forms in the 9th–8th centuries BC during early Archaic Greece and continues to the present day. The Greek alphabet was developed during the Iron Age, centuries ...
, with 24 letters, ordered from
alpha Alpha (uppercase , lowercase ) is the first letter of the Greek alphabet. In the system of Greek numerals, it has a value of one. Alpha is derived from the Phoenician letter ''aleph'' , whose name comes from the West Semitic word for ' ...
to
omega Omega (, ; uppercase Ω, lowercase ω; Ancient Greek ὦ, later ὦ μέγα, Modern Greek ωμέγα) is the twenty-fourth and last letter in the Greek alphabet. In the Greek numerals, Greek numeric system/isopsephy (gematria), it has a value ...
, had become standard throughout the Greek-speaking world and is the version that is still used for Greek writing today. The uppercase and lowercase forms of the 24 letters are: : , , , , , , , , , , , , , , , , , , , , , , , The Greek alphabet is the ancestor of several scripts, such as the
Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
, Gothic, Coptic, and
Cyrillic The Cyrillic script ( ) is a writing system used for various languages across Eurasia. It is the designated national script in various Slavic, Turkic, Mongolic, Uralic, Caucasian and Iranic-speaking countries in Southeastern Europe, Ea ...
scripts. Throughout antiquity, Greek had only a single
uppercase Letter case is the distinction between the letters that are in larger uppercase or capitals (more formally ''#Majuscule, majuscule'') and smaller lowercase (more formally ''#Minuscule, minuscule'') in the written representation of certain langua ...
form of each letter. It was written without
diacritics A diacritic (also diacritical mark, diacritical point, diacritical sign, or accent) is a glyph added to a letter or to a basic glyph. The term derives from the Ancient Greek (, "distinguishing"), from (, "to distinguish"). The word ''diacrit ...
and with little
punctuation Punctuation marks are marks indicating how a piece of writing, written text should be read (silently or aloud) and, consequently, understood. The oldest known examples of punctuation marks were found in the Mesha Stele from the 9th century BC, c ...
. By the 9th century, Byzantine scribes had begun to employ the lowercase form, which they derived from the
cursive Cursive (also known as joined-up writing) is any style of penmanship in which characters are written joined in a flowing manner, generally for the purpose of making writing faster, in contrast to block letters. It varies in functionality and m ...
styles of the uppercase letters. Sound values and conventional transcriptions for some of the letters differ between
Ancient Ancient history is a time period from the beginning of writing and recorded human history through late antiquity. The span of recorded history is roughly 5,000 years, beginning with the development of Sumerian cuneiform script. Ancient h ...
and
Modern Greek Modern Greek (, or , ), generally referred to by speakers simply as Greek (, ), refers collectively to the dialects of the Greek language spoken in the modern era, including the official standardized form of the language sometimes referred to ...
usage because the pronunciation of Greek has changed significantly between the 5th century BC and the present. Additionally, Modern and Ancient Greek now use different diacritics, with ancient Greek using the
polytonic Greek orthography has used a variety of diacritics starting in the Hellenistic period. The more complex polytonic orthography (), which includes five diacritics, notates Ancient Greek phonology. The simpler monotonic orthography (), introduce ...
orthography and modern Greek keeping only the stress accent ( acute) and the diaeresis. Apart from its use in writing the Greek language, in both its ancient and its modern forms, the Greek alphabet today also serves as a source of international technical symbols and labels in many domains of
mathematics Mathematics is a field of study that discovers and organizes methods, Mathematical theory, theories and theorems that are developed and Mathematical proof, proved for the needs of empirical sciences and mathematics itself. There are many ar ...
,
science Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe. Modern science is typically divided into twoor threemajor branches: the natural sciences, which stu ...
, and other fields.


Letters


Sound values

In both Ancient and Modern Greek, the letters of the Greek alphabet have fairly stable and consistent symbol-to-sound mappings, making pronunciation of words largely predictable. Ancient Greek spelling was generally near-
phonemic A phoneme () is any set of similar speech sounds that are perceptually regarded by the speakers of a language as a single basic sound—a smallest possible phonetic unit—that helps distinguish one word from another. All languages con ...
. For a number of letters, sound values differ considerably between Ancient and Modern Greek, because their pronunciation has followed a set of systematic phonological shifts that affected the language in its post-classical stages. ;Examples ;Notes Among consonant letters, all letters that denoted voiced plosive consonants () and aspirated plosives () in Ancient Greek stand for corresponding fricative sounds in Modern Greek. The correspondences are as follows: Among the vowel symbols, Modern Greek sound values reflect the radical simplification of the vowel system of post-classical Greek, merging multiple formerly distinct vowel phonemes into a much smaller number. This leads to several groups of vowel letters denoting identical sounds today. Modern Greek orthography remains true to the historical spellings in most of these cases. As a consequence, the spellings of words in Modern Greek are often not predictable from the pronunciation alone, while the reverse mapping, from spelling to pronunciation, is usually regular and predictable. The following vowel letters and digraphs are involved in the mergers: Modern Greek speakers typically use the same, modern symbol–sound mappings in reading Greek of all historical stages. In other countries, students of Ancient Greek may use a variety of conventional approximations of the historical sound system in pronouncing Ancient Greek.


Digraphs and letter combinations

Several letter combinations have special conventional sound values different from those of their single components. Among them are several digraphs of vowel letters that formerly represented
diphthong A diphthong ( ), also known as a gliding vowel or a vowel glide, is a combination of two adjacent vowel sounds within the same syllable. Technically, a diphthong is a vowel with two different targets: that is, the tongue (and/or other parts of ...
s but are now monophthongized. In addition to the four mentioned above (, pronounced and , pronounced ), there is also , and , pronounced . The Ancient Greek diphthongs , and are pronounced , and in Modern Greek. In some environments, they are devoiced to , and . The Modern Greek consonant combinations and stand for and (or and ); stands for and stands for . In addition, both in Ancient and Modern Greek, the letter , before another
velar consonant Velar consonants are consonants articulated with the back part of the tongue (the dorsum) against the soft palate, the back part of the roof of the mouth (also known as the "velum"). Since the velar region of the roof of the mouth is relativel ...
, stands for the
velar nasal The voiced velar nasal, also known as eng, engma, or agma (from Greek 'fragment'), is a type of consonantal sound used in some spoken languages. It is the sound of ''ng'' in English ''sing'' as well as ''n'' before velar consonants as in ''E ...
; thus and are pronounced like English like in the word finger (not like in the word thing). In analogy to and , is also used to stand for before vowels , and , and before and . There are also the combinations and .


Diacritics

In the
polytonic orthography Greek orthography has used a variety of diacritics starting in the Hellenistic period. The more complex polytonic orthography (), which includes five diacritics, notates Ancient Greek phonology. The simpler monotonic orthography (), introduce ...
traditionally used for ancient Greek and
katharevousa Katharevousa (, , literally "purifying anguage) is a conservative form of the Modern Greek language conceived in the late 18th century as both a literary language and a compromise between Ancient Greek and the contemporary vernacular, Demotic ...
, the stressed vowel of each word carries one of three accent marks: either the
acute accent The acute accent (), , is a diacritic used in many modern written languages with alphabets based on the Latin alphabet, Latin, Cyrillic script, Cyrillic, and Greek alphabet, Greek scripts. For the most commonly encountered uses of the accen ...
(), the
grave accent The grave accent () ( or ) is a diacritical mark used to varying degrees in French, Dutch, Portuguese, Italian, Catalan and many other Western European languages as well as for a few unusual uses in English. It is also used in other ...
(), or the
circumflex accent The circumflex () is a diacritic in the Latin and Greek scripts that is also used in the written forms of many languages and in various romanization and transcription schemes. It received its English name from "bent around"a translation of ...
( or ). These signs were originally designed to mark different forms of the phonological
pitch accent A pitch-accent language is a type of language that, when spoken, has certain syllables in words or morphemes that are prominent, as indicated by a distinct contrasting pitch (music), pitch (tone (linguistics), linguistic tone) rather than by vol ...
in Ancient Greek. By the time their use became conventional and obligatory in Greek writing, in late antiquity, pitch accent was evolving into a single stress accent, and thus the three signs have not corresponded to a phonological distinction in actual speech ever since. In addition to the accent marks, every word-initial vowel must carry either of two so-called "breathing marks": the
rough breathing In the polytonic orthography of Ancient Greek, the rough breathing ( or ; ) character is a diacritical mark used to indicate the presence of an sound before a vowel, diphthong, or after rho. It remained in the polytonic orthography even af ...
(), marking an sound at the beginning of a word, or the
smooth breathing The smooth breathing (; ''psilí''; ) is a diacritical mark used in polytonic orthography. In Ancient Greek, it marks the absence of the voiceless glottal fricative from the beginning of a word. Some authorities have interpreted it as repr ...
(), marking its absence. The letter rho (ρ), although not a vowel, also carries rough breathing in a word-initial position. If a rho was geminated within a word, the first always had the smooth breathing and the second the rough breathing () leading to the transliteration . The vowel letters carry an additional diacritic in certain words, the so-called
iota subscript The iota subscript is a diacritic mark in the Greek alphabet shaped like a small vertical stroke or miniature iota placed below the letter. It can occur with the vowel letters eta , omega , and alpha . It represents the former presence of an ...
, which has the shape of a small vertical stroke or a miniature below the letter. This iota represents the former offglide of what were originally long diphthongs, (i.e. ), which became monophthongized during antiquity. Another diacritic used in Greek is the diaeresis (), indicating a hiatus. This system of diacritics was first developed by the scholar
Aristophanes of Byzantium __NOTOC__ Aristophanes of Byzantium ( ; Byzantium – Alexandria BC) was a Hellenistic Greek scholar, critic and grammarian, particularly renowned for his work in Homeric scholarship, but also for work on other classical authors such as ...
(), who worked at the
Musaeum The Mouseion of Alexandria (; ), which arguably included the Library of Alexandria, was an institution said to have been founded by Ptolemy I Soter and his son Ptolemy II Philadelphus. Originally, the word ''mouseion'' meant any place that w ...
in Alexandria during the 3rd century BC. Aristophanes of Byzantium also was the first to divide poems into lines, rather than writing them like prose, and also introduced a series of signs for
textual criticism Textual criticism is a branch of textual scholarship, philology, and literary criticism that is concerned with the identification of textual variants, or different versions, of either manuscripts (mss) or of printed books. Such texts may rang ...
. In 1982, a new, simplified orthography, known as "monotonic", was adopted for official use in Modern Greek by the Greek state. It uses only a single accent mark, the acute (also known in this context as , i.e. simply 'accent'), marking the stressed syllable of polysyllabic words, and occasionally the diaeresis to distinguish diphthongal from digraph readings in pairs of vowel letters, making this monotonic system very similar to the accent mark system used in
Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many countries in the Americas **Spanish cuisine **Spanish history **Spanish culture ...
. The polytonic system is still conventionally used for writing Ancient Greek, while in some book printing and generally in the usage of conservative writers it can still also be found in use for Modern Greek. Although it is not a diacritic, the
comma The comma is a punctuation mark that appears in several variants in different languages. Some typefaces render it as a small line, slightly curved or straight, but inclined from the vertical; others give it the appearance of a miniature fille ...
has a similar function as a
silent letter In an alphabetic writing system, a silent letter is a letter that, in a particular word, does not correspond to any sound in the word's pronunciation. In linguistics, a silent letter is often symbolised with a null sign , which resembles the ...
in a handful of Greek words, principally distinguishing (, 'whatever') from (, 'that').Nicolas, Nick.
Greek Unicode Issues: Punctuation
". 2005. Accessed 7 Oct 2014.


Romanization

There are many different methods of rendering Greek text or Greek names in the Latin script. The form in which classical Greek names are conventionally rendered in English goes back to the way Greek loanwords were incorporated into Latin in antiquity. In this system, is replaced with , the diphthongs and are rendered as and (or ); and and are simplified to and . Smooth breathing marks are usually ignored and rough breathing marks are usually rendered as the letter . In modern scholarly transliteration of Ancient Greek, will usually be rendered as , and the vowel combinations as . The letters and are generally rendered as and ; as either or ; and word-initial as . Transcription conventions for Modern Greek differ widely, depending on their purpose, on how close they stay to the conventional letter correspondences of Ancient Greek-based transcription systems, and to what degree they attempt either an exact letter-by-letter
transliteration Transliteration is a type of conversion of a text from one script to another that involves swapping letters (thus '' trans-'' + '' liter-'') in predictable ways, such as Greek → and → the digraph , Cyrillic → , Armenian → or L ...
or rather a phonetically based transcription. Standardized formal transcription systems have been defined by the
International Organization for Standardization The International Organization for Standardization (ISO ; ; ) is an independent, non-governmental, international standard development organization composed of representatives from the national standards organizations of member countries. M ...
(as ISO 843), by the
United Nations Group of Experts on Geographical Names The United Nations Group of Experts on Geographical Names (UNGEGN) is one of the nine expert groups of the United Nations Economic and Social Council (ECOSOC) and deals with the national and international standardization of geographical names. ...
, by the
Library of Congress The Library of Congress (LOC) is a research library in Washington, D.C., serving as the library and research service for the United States Congress and the ''de facto'' national library of the United States. It also administers Copyright law o ...
, and others.


History


Origins

During the
Mycenaean period Mycenaean Greece (or the Mycenaean civilization) was the last phase of the Bronze Age in ancient Greece, spanning the period from approximately 1750 to 1050 BC.. It represents the first advanced and distinctively Greek civilization in mainla ...
, between roughly the 16th and 12th centuries BC, a script called
Linear B Linear B is a syllabary, syllabic script that was used for writing in Mycenaean Greek, the earliest Attested language, attested form of the Greek language. The script predates the Greek alphabet by several centuries, the earliest known examp ...
was used to write the earliest attested form of the Greek language, known as
Mycenaean Greek Mycenaean Greek is the earliest attested form of the Greek language. It was spoken on the Greek mainland and Crete in Mycenaean Greece (16th to 12th centuries BC). The language is preserved in inscriptions in Linear B, a script first atteste ...
. This writing system, unrelated to the Greek alphabet, last appeared in the 13th century BC. Inscription written in the Greek alphabet begin to emerge from the 8th century BC onward. While early samples of the Greek alphabet date from at least 775 BC, the oldest known substantial and comprehensible Greek inscriptions, such as those on the Dipylon vase, the cup of Nestor and cup of Acesander, date from /30 BC. It is accepted that the introduction of the alphabet occurred some time prior to these inscriptions. The latest archaeological discoveries function as a , with the proposed dates being placed some time earlier, see ; . It is also possible that the alphabet first circulated on perishable materials, before being written on materials that can be preserved, see ; While earlier dates have been proposed, the Greek alphabet is commonly held to have originated some time in the late 9th or early 8th century BC, conventionally around 800 BC. The period between the use of the two writing systems, Linear B and the Greek alphabet, during which no Greek texts are attested, is known as the
Greek Dark Ages The Greek Dark Ages ( 1180–800 BC) were earlier regarded as two continuous periods of Greek history: the Postpalatial Bronze Age (c. 1180–1050 BC) and the Prehistoric Iron Age or Early Iron Age (c. 1050–800 BC). The last included all the ...
. The Greeks adopted the alphabet from the earlier
Phoenician alphabet The Phoenician alphabet is an abjad (consonantal alphabet) used across the Mediterranean civilization of Phoenicia for most of the 1st millennium BC. It was one of the first alphabets, attested in Canaanite and Aramaic inscriptions fo ...
, one of the closely related scripts used for the
West Semitic languages The West Semitic languages are a proposed major sub-grouping of Semitic languages. The term was first coined in 1883 by Fritz Hommel.alphabet An alphabet is a standard set of letter (alphabet), letters written to represent particular sounds in a spoken language. Specifically, letters largely correspond to phonemes as the smallest sound segments that can distinguish one word from a ...
in the narrow sense, as distinguished from the
abjad An abjad ( or abgad) is a writing system in which only consonants are represented, leaving the vowel sounds to be inferred by the reader. This contrasts with alphabets, which provide graphemes for both consonants and vowels. The term was introd ...
s used in
Semitic languages The Semitic languages are a branch of the Afroasiatic languages, Afroasiatic language family. They include Arabic, Amharic, Tigrinya language, Tigrinya, Aramaic, Hebrew language, Hebrew, Maltese language, Maltese, Modern South Arabian language ...
, which have letters only for consonants. Greek initially took over all of the 22 letters of Phoenician. Five were reassigned to denote vowel sounds: the glide consonants (''
yodh Yodh (also spelled jodh, yod, or jod) is the tenth letter of the Semitic abjads, including Phoenician ''yōd'' 𐤉, Hebrew ''yod'' , Aramaic ''yod'' 𐡉, Syriac ''yōḏ'' ܝ, and Arabic ''yāʾ'' . It is also related to the Ancient Nort ...
'') and ('' waw'') were used for (Ι, ''
iota Iota (; uppercase Ι, lowercase ι; ) is the ninth letter of the Greek alphabet. It was derived from the Phoenician letter Yodh. Letters that arose from this letter include the Latin I and J, the Cyrillic І (І, і), Yi (Ї, ї), and J ...
'') and (Υ, ''
upsilon Upsilon (, ; uppercase Υ, lowercase υ; ''ýpsilon'' ) or ypsilon is the twentieth letter of the Greek alphabet. In the system of Greek numerals, has a value of 400. It is derived from the phoenician alphabet, Phoenician Waw (letter), waw ...
''); the
glottal stop The glottal stop or glottal plosive is a type of consonantal sound used in many Speech communication, spoken languages, produced by obstructing airflow in the vocal tract or, more precisely, the glottis. The symbol in the International Phonetic ...
consonant (''
aleph Aleph (or alef or alif, transliterated ʾ) is the first Letter (alphabet), letter of the Semitic abjads, including Phoenician alphabet, Phoenician ''ʾālep'' 𐤀, Hebrew alphabet, Hebrew ''ʾālef'' , Aramaic alphabet, Aramaic ''ʾālap'' � ...
'') was used for (Α, ''
alpha Alpha (uppercase , lowercase ) is the first letter of the Greek alphabet. In the system of Greek numerals, it has a value of one. Alpha is derived from the Phoenician letter ''aleph'' , whose name comes from the West Semitic word for ' ...
''); the pharyngeal ('' ʿayin'') was turned into (Ο, ''
omicron Omicron (, ; uppercase Ο, lowercase ο, ) is the fifteenth letter of the Greek alphabet. This letter is derived from the Phoenician letter ayin: . In classical Greek, omicron represented the close-mid back rounded vowel in contrast to '' o ...
''); and the letter for ('' he'') was turned into (Ε, ''
epsilon Epsilon (, ; uppercase , lowercase or ; ) is the fifth letter of the Greek alphabet, corresponding phonetically to a mid front unrounded vowel or . In the system of Greek numerals it also has the value five. It was derived from the Phoenic ...
''). A doublet of ''waw'' was also borrowed as a consonant for (Ϝ, ''
digamma Digamma or wau (uppercase: Ϝ, lowercase: ϝ, numeral: ϛ) is an Archaic Greek alphabets, archaic letter of the Greek alphabet. It originally stood for the sound but it has remained in use principally as a Greek numeral for 6 (number), 6. Whe ...
''). In addition, the Phoenician letter for the emphatic glottal (''
heth Heth, sometimes written Chet or Ḥet, is the eighth letter of the Semitic abjads, including Phoenician ''ḥēt'' 𐤇, Hebrew ''ḥēt'' , Aramaic ''ḥēṯ'' 𐡇, Syriac ''ḥēṯ'' ܚ, and Arabic ''ḥāʾ'' . It is also related to ...
'') was borrowed in two different functions by different dialects of Greek: as a letter for /h/ (Η, '' heta'') by those dialects that had such a sound, and as an additional vowel letter for the long (Η, ''
eta Eta ( ; uppercase , lowercase ; ''ē̂ta'' or ''ita'' ) is the seventh letter of the Greek alphabet, representing the close front unrounded vowel, . Originally denoting the voiceless glottal fricative, , in most dialects of Ancient Greek, it ...
'') by those dialects that lacked the consonant. Eventually, a seventh vowel letter for the long (Ω, ''
omega Omega (, ; uppercase Ω, lowercase ω; Ancient Greek ὦ, later ὦ μέγα, Modern Greek ωμέγα) is the twenty-fourth and last letter in the Greek alphabet. In the Greek numerals, Greek numeric system/isopsephy (gematria), it has a value ...
'') was introduced. Greek also introduced three new consonant letters for its aspirated plosive sounds and consonant clusters: Φ (''
phi Phi ( ; uppercase Φ, lowercase φ or ϕ; ''pheî'' ; Modern Greek: ''fi'' ) is the twenty-first letter of the Greek alphabet. In Archaic and Classical Greek (c. 9th to 4th century BC), it represented an aspirated voiceless bilabial plos ...
'') for , Χ ('' chi'') for and Ψ (''
psi Psi, PSI or Ψ may refer to: Alphabetic letters * Psi (Greek) (Ψ or ψ), the twenty-third letter of the Greek alphabet * Psi (Cyrillic), letter of the early Cyrillic alphabet, adopted from Greek Arts and entertainment * "Psi" as an abbreviat ...
'') for . In western Greek variants, Χ was instead used for and Ψ for . The origin of these letters is a matter of some debate.
Three of the original Phoenician letters dropped out of use before the alphabet took its classical shape: the letter Ϻ ('' san''), which had been in competition with Σ (''
sigma Sigma ( ; uppercase Σ, lowercase σ, lowercase in word-final position ς; ) is the eighteenth letter of the Greek alphabet. In the system of Greek numerals, it has a value of 200. In general mathematics, uppercase Σ is used as an operator ...
'') denoting the same phoneme /s/; the letter Ϙ (''
qoppa Koppa or qoppa (; as a modern numeral sign: ) is a letter that was used in early forms of the Greek alphabet, derived from Phoenician qoph (). It was originally used to denote the sound, but dropped out of use as an alphabetic character and ...
''), which was redundant with Κ (''
kappa Kappa (; uppercase Κ, lowercase κ or cursive ; , ''káppa'') is the tenth letter of the Greek alphabet, representing the voiceless velar plosive sound in Ancient and Modern Greek. In the system of Greek numerals, has a value of 20. It was d ...
'') for /k/, and Ϝ (''
digamma Digamma or wau (uppercase: Ϝ, lowercase: ϝ, numeral: ϛ) is an Archaic Greek alphabets, archaic letter of the Greek alphabet. It originally stood for the sound but it has remained in use principally as a Greek numeral for 6 (number), 6. Whe ...
''), whose sound value /w/ dropped out of the spoken language before or during the classical period. Greek was originally written predominantly from right to left, just like Phoenician, but scribes could freely alternate between directions. For a time, a writing style with alternating right-to-left and left-to-right lines (called ''
boustrophedon Boustrophedon () is a style of writing in which alternate lines of writing are reversed, with letters also written in reverse, mirror-style. This is in contrast to modern European languages, where lines always begin on the same side, usually the l ...
'', literally 'ox-turning', after the manner of an ox ploughing a field) was common, until in the classical period the left-to-right writing direction became the norm. Individual letter shapes were mirrored depending on the writing direction of the current line.


Archaic variants

There were initially numerous local (epichoric) variants of the Greek alphabet, which differed in the use and non-use of the additional vowel and consonant symbols and several other features. Epichoric alphabets are commonly divided into four major types according to their different treatments of additional consonant letters for the aspirated consonants (/pʰ, kʰ/) and consonant clusters (/ks, ps/) of Greek. These four types are often conventionally labelled as "green", "red", "light blue" and "dark blue" types, based on a colour-coded map in a seminal 19th-century work on the topic, by
Adolf Kirchhoff Johann Wilhelm Adolf Kirchhoff (6 January 1826 – 26 February 1908) was a German classical scholar and epigraphist. Biography The son of historical painter Johann Jakob Kirchhoff, he was born in Berlin, and educated there. He then taught in ...
(1867). The "green" (or southern) type is the most archaic and closest to the Phoenician. The "red" (or western) type is the one that was later transmitted to the West and became the ancestor of the
Latin alphabet The Latin alphabet, also known as the Roman alphabet, is the collection of letters originally used by the Ancient Rome, ancient Romans to write the Latin language. Largely unaltered except several letters splitting—i.e. from , and from � ...
, and bears some crucial features characteristic of that later development. The "blue" (or eastern) type is the one from which the later standard Greek alphabet emerged.
Athens Athens ( ) is the Capital city, capital and List of cities and towns in Greece, largest city of Greece. A significant coastal urban area in the Mediterranean, Athens is also the capital of the Attica (region), Attica region and is the southe ...
used a local form of the "light blue" alphabet type until the end of the 5th century BC, which lacked the letters Ξ and Ψ as well as the vowel symbols Η and Ω. In the Old Attic alphabet, stood for and for . was used for all three sounds (correspondinɡ to classical ), and was used for all of (corresponding to classical ). The letter (heta) was used for the consonant . Some variant local letter forms were also characteristic of Athenian writing, some of which were shared with the neighboring (but otherwise "red") alphabet of Euboia: a form of that resembled a Latin ''L'' () and a form of that resembled a Latin ''S'' (). *Upsilon is also derived from waw (). The classical twenty-four-letter alphabet that is now used to represent the Greek language was originally the local alphabet of
Ionia Ionia ( ) was an ancient region encompassing the central part of the western coast of Anatolia. It consisted of the northernmost territories of the Ionian League of Greek settlements. Never a unified state, it was named after the Ionians who ...
. By the late 5th century BC, it was commonly used by many Athenians. In 403 BC, at the suggestion of the
archon ''Archon'' (, plural: , ''árchontes'') is a Greek word that means "ruler", frequently used as the title of a specific public office. It is the masculine present participle of the verb stem , meaning "to be first, to rule", derived from the same ...
Eucleides Eucleides () was eponymous archon of Athens for the year running from July/August 403 BC until June/July 402 BC. His year in office was marked by Athens' official adoption of the Ionic alphabet. There is some evidence that he may have been perso ...
, the Athenian Assembly formally abandoned the Old Attic alphabet and adopted the Ionian alphabet as part of the democratic reforms after the overthrow of the
Thirty Tyrants The Thirty Tyrants (, ''hoi triákonta týrannoi'') were an oligarchy that briefly ruled Classical Athens, Athens from 404 BC, 404 BCE to 403 BC, 403 BCE. Installed into power by the Sparta, Spartans after the Athenian surrender in the Peloponnesian ...
. Because of Eucleides's role in suggesting the idea to adopt the Ionian alphabet, the standard twenty-four-letter Greek alphabet is sometimes known as the "Eucleidean alphabet". Roughly thirty years later, the Eucleidean alphabet was adopted in Boeotia and it may have been adopted a few years previously in
Macedonia Macedonia (, , , ), most commonly refers to: * North Macedonia, a country in southeastern Europe, known until 2019 as the Republic of Macedonia * Macedonia (ancient kingdom), a kingdom in Greek antiquity * Macedonia (Greece), a former administr ...
. By the end of the 4th century BC, it had displaced local alphabets across the Greek-speaking world to become the standard form of the Greek alphabet.


Letter names

When the Greeks adopted the Phoenician alphabet, they took over not only the letter shapes and sound values but also the names by which the sequence of the alphabet could be recited and memorized. In Phoenician, each letter name was a word that began with the sound represented by that letter; thus '' ʾaleph'', the word for "ox", was used as the name for the glottal stop , ''
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'', or "house", for the sound, and so on. When the letters were adopted by the Greeks, most of the Phoenician names were maintained or modified slightly to fit Greek phonology; thus, ''ʾaleph, bet, gimel'' became ''alpha, beta, gamma''. The Greek names of the following letters are more or less straightforward continuations of their Phoenician antecedents. Between Ancient and Modern Greek, they have remained largely unchanged, except that their pronunciation has followed regular sound changes along with other words (for instance, in the name of ''beta'', ancient /b/ regularly changed to modern /v/, and ancient /ɛː/ to modern /i/, resulting in the modern pronunciation ''vita''). The name of lambda is attested in early sources as besides ; in Modern Greek the spelling is often , reflecting pronunciation. Similarly, iota is sometimes spelled in Modern Greek ( is conventionally transcribed word-initially and intervocalically before
back vowel A back vowel is any in a class of vowel sound used in spoken languages. The defining characteristic of a back vowel is that the highest point of the tongue is positioned relatively back in the mouth without creating a constriction that would be c ...
s and ). In the tables below, the Greek names of all letters are given in their traditional polytonic spelling; in modern practice, like with all other words, they are usually spelled in the simplified monotonic system. In the cases of the three historical sibilant letters below, the correspondence between Phoenician and Ancient Greek is less clear, with apparent mismatches both in letter names and sound values. The early history of these letters (and the fourth sibilant letter, obsolete san) has been a matter of some debate. Here too, the changes in the pronunciation of the letter names between Ancient and Modern Greek are regular. In the following group of consonant letters, the older forms of the names in Ancient Greek were spelled with , indicating an original pronunciation with ''-ē''. In Modern Greek these names are spelled with . The following group of vowel letters were originally called simply by their sound values as long vowels: ē, ō, ū, and . Their modern names contain adjectival qualifiers that were added during the Byzantine period, to distinguish between letters that had become confusable. Thus, the letters and , pronounced identically by this time, were called ''o mikron'' ("small o") and ''o mega'' ("big o"). The letter was called ''e psilon'' ("plain e") to distinguish it from the identically pronounced digraph , while, similarly, , which at this time was pronounced , was called ''y psilon'' ("plain y") to distinguish it from the identically pronounced digraph . Some dialects of the Aegean and Cypriot have retained long consonants and pronounce and ; also, has come to be pronounced in Cypriot.


Letter shapes

Like Latin and other alphabetic scripts, Greek originally had only a single form of each letter, without a distinction between uppercase and lowercase. This distinction is an innovation of the modern era, drawing on different lines of development of the letter shapes in earlier handwriting. The oldest forms of the letters in antiquity are
majuscule Letter case is the distinction between the letters that are in larger uppercase or capitals (more formally '' majuscule'') and smaller lowercase (more formally '' minuscule'') in the written representation of certain languages. The writing syste ...
forms. Besides the upright, straight inscriptional forms (capitals) found in stone carvings or incised pottery, more fluent writing styles adapted for handwriting on soft materials were also developed during antiquity. Such handwriting has been preserved especially from
papyrus Papyrus ( ) is a material similar to thick paper that was used in ancient times as a writing surface. It was made from the pith of the papyrus plant, ''Cyperus papyrus'', a wetland sedge. ''Papyrus'' (plural: ''papyri'' or ''papyruses'') can a ...
manuscripts in
Egypt Egypt ( , ), officially the Arab Republic of Egypt, is a country spanning the Northeast Africa, northeast corner of Africa and Western Asia, southwest corner of Asia via the Sinai Peninsula. It is bordered by the Mediterranean Sea to northe ...
since the
Hellenistic period In classical antiquity, the Hellenistic period covers the time in Greek history after Classical Greece, between the death of Alexander the Great in 323 BC and the death of Cleopatra VII in 30 BC, which was followed by the ascendancy of the R ...
. Ancient handwriting developed two distinct styles:
uncial Uncial is a majuscule script (written entirely in capital letters) commonly used from the 4th to 8th centuries AD by Latin and Greek scribes. Uncial letters were used to write Greek and Latin, as well as Gothic, and are the current style for ...
writing, with carefully drawn, rounded block letters of about equal size, used as a
book hand A book hand was any of several stylized handwriting scripts used during ancient and medieval times. It was intended for legibility and often used in transcribing official documents (prior to the development of printing and similar technologies). ...
for carefully produced literary and religious manuscripts, and
cursive Cursive (also known as joined-up writing) is any style of penmanship in which characters are written joined in a flowing manner, generally for the purpose of making writing faster, in contrast to block letters. It varies in functionality and m ...
writing, used for everyday purposes. The cursive forms approached the style of lowercase letter forms, with ascenders and descenders, as well as many connecting lines and ligatures between letters. In the 9th and 10th centuries, uncial book hands were replaced with a new, more compact writing style, with letter forms partly adapted from the earlier cursive. This
minuscule Letter case is the distinction between the letters that are in larger uppercase or capitals (more formally ''majuscule'') and smaller lowercase (more formally '' minuscule'') in the written representation of certain languages. The writing system ...
style remained the dominant form of handwritten Greek into the modern era. During the
Renaissance The Renaissance ( , ) is a Periodization, period of history and a European cultural movement covering the 15th and 16th centuries. It marked the transition from the Middle Ages to modernity and was characterized by an effort to revive and sur ...
, western printers adopted the minuscule letter forms as lowercase printed typefaces, while modeling uppercase letters on the ancient inscriptional forms. The orthographic practice of using the letter case distinction for marking proper names, titles, etc. developed in parallel to the practice in Latin and other western languages.


Derived alphabets

The Greek alphabet was the model for various others: * Most of the
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alphabets of Asia Minor Various alphabetic writing systems were in use in Iron Age Anatolia to record Anatolian languages and Phrygian language, Phrygian. Several of these languages had previously been written with logogram, logographic and syllabary, syllabic scripts. ...
were adopted around the same time, as the early Greek alphabet was adopted from the Phoenician. The Lydian and Carian alphabets are generally believed to derive from the Greek alphabet, although it is not clear which variant is the direct ancestor. While some of these alphabets such as Phrygian had slight differences from the Greek counterpart, some like Carian alphabet had mostly different values and several other characters inherited from pre-Greek local scripts. They were in use –300 BC until all the
Anatolian languages The Anatolian languages are an extinct branch of Indo-European languages that were spoken in Anatolia. The best known Anatolian language is Hittite, which is considered the earliest-attested Indo-European language. Undiscovered until the late ...
were extinct due to
Hellenization Hellenization or Hellenification is the adoption of Greek culture, religion, language, and identity by non-Greeks. In the ancient period, colonisation often led to the Hellenisation of indigenous people in the Hellenistic period, many of the ...
. * The
Latin alphabet The Latin alphabet, also known as the Roman alphabet, is the collection of letters originally used by the Ancient Rome, ancient Romans to write the Latin language. Largely unaltered except several letters splitting—i.e. from , and from � ...
, together with various other ancient scripts in Italy, adopted from an archaic form of the Greek alphabet brought to Italy by Greek colonists in the late 8th century BC, via
Etruscan __NOTOC__ Etruscan may refer to: Ancient civilization *Etruscan civilization (1st millennium BC) and related things: **Etruscan language ** Etruscan architecture **Etruscan art **Etruscan cities **Etruscan coins **Etruscan history **Etruscan myt ...
; * The
Gothic alphabet The Gothic alphabet is an alphabet for writing the Gothic language. It was developed in the 4th century AD by Ulfilas (or Wulfila), a Gothic preacher of Cappadocian Greek descent, for the purpose of translating the Bible. The alphabet e ...
, devised in the 4th century to write the
Gothic language Gothic is an extinct language, extinct East Germanic languages, East Germanic language that was spoken by the Goths. It is known primarily from the ''Codex Argenteus'', a 6th-century copy of a 4th-century Bible translation, and is the only Ea ...
, based on a combination of Greek and Latin uncial models; * The
Cyrillic alphabet The Cyrillic script ( ) is a writing system used for various languages across Eurasia. It is the designated national script in various Slavic, Turkic, Mongolic, Uralic, Caucasian and Iranic-speaking countries in Southeastern Europe, Easte ...
, which added several letters from the
Glagolitic alphabet The Glagolitic script ( , , ''glagolitsa'') is the oldest known Slavic alphabet. It is generally agreed that it was created in the 9th century for the purpose of translating liturgical texts into Old Church Slavonic by Saints Cyril and Methodi ...
to write
Old Church Slavonic Old Church Slavonic or Old Slavonic ( ) is the first Slavic languages, Slavic literary language and the oldest extant written Slavonic language attested in literary sources. It belongs to the South Slavic languages, South Slavic subgroup of the ...
; * The
Coptic alphabet The Coptic alphabet is the script used for writing the Coptic language, the most recent development of Egyptian. The repertoire of glyphs is based on the uncial Greek alphabet, augmented by letters borrowed from the Egyptian Demotic. It was ...
adds eight letters derived from
Demotic Demotic may refer to: * Demotic Greek, the modern vernacular form of the Greek language * Demotic (Egyptian), an ancient Egyptian script and version of the language * Chữ Nôm Chữ Nôm (, ) is a logographic writing system formerly used t ...
. It is still used today, mostly in Egypt, to write Coptic, the liturgical language of Egyptian Christians. Letters usually retain an uncial form different from the forms used for Greek today. The alphabet of Old Nubian is an adaptation of Coptic. The
Armenian Armenian may refer to: * Something of, from, or related to Armenia, a country in the South Caucasus region of Eurasia * Armenians, the national people of Armenia, or people of Armenian descent ** Armenian diaspora, Armenian communities around the ...
and Georgian alphabets are almost certainly modeled on the Greek alphabet, but their graphic forms are quite different.


Other uses


Use for other languages

Apart from the daughter alphabets listed above, which were adapted from Greek but developed into separate writing systems, the Greek alphabet has also been adopted at various times and in various places to write other languages. For some of them, additional letters were introduced.


Antiquity

* It was used in some
Paleo-Balkan languages The Paleo-Balkan languages are a geographical grouping of various Indo-European languages that were spoken in the Balkans and surrounding areas in ancient times. In antiquity, Dacian, Greek, Illyrian, Messapic, Paeonian, Phrygian and Thracian wer ...
, including
Thracian The Thracians (; ; ) were an Indo-European speaking people who inhabited large parts of Southeast Europe in ancient history.. "The Thracians were an Indo-European people who occupied the area that today is shared between north-eastern Greece, ...
. For other neighboring languages or dialects, such as Ancient Macedonian, isolated words are preserved in Greek texts, but no continuous texts are preserved. *
Gaulish Gaulish is an extinct Celtic languages, Celtic language spoken in parts of Continental Europe before and during the period of the Roman Empire. In the narrow sense, Gaulish was the language of the Celts of Gaul (now France, Luxembourg, Belgium, ...
inscriptions (in modern France) used the Greek alphabet until the Roman conquest * The
Bactrian language Bactrian (, , meaning "Iranian") was an Eastern Iranian language formerly spoken in the Central Asian region of Bactria (present-day Afghanistan) and used as the official language of the Kushan and the Hephthalite empires. Name It was long tho ...
, an
Iranian language The Iranian languages, also called the Iranic languages, are a branch of the Indo-Iranian languages in the Indo-European language family that are spoken natively by the Iranian peoples, predominantly in the Iranian Plateau. The Iranian language ...
spoken in what is now
Afghanistan Afghanistan, officially the Islamic Emirate of Afghanistan, is a landlocked country located at the crossroads of Central Asia and South Asia. It is bordered by Pakistan to the Durand Line, east and south, Iran to the Afghanistan–Iran borde ...
, was written in the Greek alphabet during the
Kushan Empire The Kushan Empire (– CE) was a Syncretism, syncretic empire formed by the Yuezhi in the Bactrian territories in the early 1st century. It spread to encompass much of what is now Afghanistan, Eastern Iran, India, Pakistan, Tajikistan and Uzbe ...
(65–250 AD). It adds an extra letter for the ''sh'' sound . * Derived from
Indo-Greek The Indo-Greek Kingdom, also known as the Yavana Kingdom, was a Hellenistic period, Hellenistic-era Ancient Greece, Greek kingdom covering various parts of modern-day Afghanistan, Pakistan and northwestern India. The term "Indo-Greek Kingdom" ...
coinage, the coins of
Nahapana Nahapana (Ancient Greek: ; Kharosthi: , ; Brahmi script, Brahmi: , ;), was a member of Western Satraps, Kshaharata dynasty in northwestern India, who ruled during the 1st or 2nd century CE. According to one of his coins, he was the son of B ...
and Chastana of the
Western Satraps The Western Satraps, or Western Kshatrapas (Brahmi: , ''Mahakṣatrapa'', "Great Satraps") were Indo-Scythian (Saka) rulers of the western and central parts of India (extending from Saurashtra in the south and Malwa in the east, covering moder ...
featured an
Indo-Aryan language The Indo-Aryan languages, or sometimes Indic languages, are a branch of the Indo-Iranian languages in the Indo-European language family. As of 2024, there are more than 1.5 billion speakers, primarily concentrated east of the Indus river in Ba ...
legend written in Greek or pseudo-Greek letters. The subsequent rulers' coins had the Greek script degrade to a mere ornament that no longer represented any legible legend.


Middle Ages

* Coins from the 4th-8th centuries known as mordovkas were used as currency in Eastern Europe by
Uralic peoples The Uralic languages ( ), sometimes called the Uralian languages ( ), are spoken predominantly in Europe and North Asia. The Uralic languages with the most native speakers are Hungarian, Finnish, and Estonian. Other languages with speakers abo ...
and were written in
Moksha ''Moksha'' (; , '), also called ''vimoksha'', ''vimukti'', and ''mukti'', is a term in Jainism, Buddhism, Hinduism, and Sikhism for various forms of emancipation, liberation, '' nirvana'', or release. In its soteriological and eschatologic ...
using Greek uncial script. * An 8th-century
Arabic Arabic (, , or , ) is a Central Semitic languages, Central Semitic language of the Afroasiatic languages, Afroasiatic language family spoken primarily in the Arab world. The International Organization for Standardization (ISO) assigns lang ...
fragment preserves a text in the Greek alphabet, as does a 9th- or 10th-century psalm translation fragment. * An Old Ossetic inscription of the 10th–12th centuries found in Arxyz, the oldest known attestation of an Ossetic language. * The
Old Nubian language Old Nubian (also called Middle Nubian or Old Nobiin) is an extinct Nubian language, attested in writing from the 8th to the 15th century AD. It is ancestral to modern-day Nobiin and closely related to Dongolawi and Kenzi. It was used through ...
of
Makuria Makuria ( Old Nubian: , ''Dotawo''; ; ) was a medieval Nubian kingdom in what is today northern Sudan and southern Egypt. Its capital was Dongola (Old Nubian: ') in the fertile Dongola Reach, and the kingdom is sometimes known by the name of ...
(modern Sudan) adds three Coptic letters, two letters derived from
Meroitic script The Meroitic script consists of two alphasyllabic scripts developed to write the Meroitic language at the beginning of the Meroitic Period (3rd century BC) of the Kingdom of Kush. The two scripts are Meroitic Cursive, derived from Demotic Egy ...
, and a digraph of two Greek gammas used for the
velar nasal The voiced velar nasal, also known as eng, engma, or agma (from Greek 'fragment'), is a type of consonantal sound used in some spoken languages. It is the sound of ''ng'' in English ''sing'' as well as ''n'' before velar consonants as in ''E ...
sound. * Various South Slavic dialects, similar to the modern Bulgarian and
Macedonian language Macedonian ( ; , , ) is an Eastern South Slavic language. It is part of the Indo-European languages, Indo-European language family, and is one of the Slavic languages, which are part of a larger Balto-Slavic languages, Balto-Slavic branch. Sp ...
s, have been written in Greek script. The modern South Slavic languages now use modified
Cyrillic alphabets Numerous Cyrillic alphabets are based on the Cyrillic script. The early Cyrillic alphabet was developed in the 9th century AD and replaced the earlier Glagolitic script developed by the theologians Saints Cyril and Methodius, Cyril and Methodi ...
.


Early modern

* Turkish spoken by Orthodox Christians ('' Karamanlides'') was often written in Greek script, and called '' Karamanlidika''. *
Tosk Tosk ( sq-definite, toskërishtja) is the southern group of dialects of the Albanian language, spoken by the ethnographic group known as Tosks. The line of demarcation between Tosk and Gheg (the northern variety) is the Shkumbin River. Tosk is ...
Albanian Albanian may refer to: *Pertaining to Albania in Southeast Europe; in particular: **Albanians, an ethnic group native to the Balkans **Albanian language **Albanian culture **Demographics of Albania, includes other ethnic groups within the country ...
was often written using the Greek alphabet, starting in about 1500. The printing press at Moschopolis published several Albanian texts in Greek script during the 18th century. It was only in 1908 that the Monastir conference standardized a Latin orthography for both Tosk and
Gheg Gheg or Geg (Gheg Albanian: ''gegnisht'', Standard ) is one of the two major varieties of Albanian, the other being Tosk. The geographic dividing line between the two varieties is the Shkumbin River, which winds its way through central Alba ...
. Greek spelling is still occasionally used for the local Albanian dialects (
Arvanitika Arvanitika (; Arvanitika: , ; Greek: , ), also known as Arvanitic, is the variety of Albanian traditionally spoken by the Arvanites, a population group in Greece. Arvanitika was brought to Southern Greece during the late Middle Ages by Alb ...
) in Greece. * Gagauz, a
Turkic language The Turkic languages are a language family of more than 35 documented languages, spoken by the Turkic peoples of Eurasia from Eastern Europe and Southern Europe to Central Asia, East Asia, North Asia (Siberia), and West Asia. The Turkic langua ...
of the northeast Balkans spoken by Orthodox Christians, was apparently written in Greek characters in the late 19th century. In 1957, it was standardized on Cyrillic, and in 1996, a
Gagauz alphabet The modern Gagauz alphabet is a 31-letter Latin-based alphabet modelled on the Turkish alphabet and Azerbaijani. It is used to write the Gagauz language. During its existence, it has functioned on different graphic bases and has been repeatedly ...
based on Latin characters was adopted (derived from the
Turkish alphabet The Turkish alphabet () is a Latin-script alphabet used for writing the Turkish language, consisting of 29 letters, seven of which ( Ç, Ğ, I, İ, Ö, Ş and Ü) have been modified from their Latin originals for the phonetic requirements o ...
). * Surguch, a
Turkic language The Turkic languages are a language family of more than 35 documented languages, spoken by the Turkic peoples of Eurasia from Eastern Europe and Southern Europe to Central Asia, East Asia, North Asia (Siberia), and West Asia. The Turkic langua ...
, was spoken by a small group of Orthodox Christians in northern Greece. It is now written in Latin or Cyrillic characters. * Urum or Greek Tatar, spoken by Orthodox Christians, used the Greek alphabet. *
Judaeo-Spanish Judaeo-Spanish or Judeo-Spanish (autonym , Hebrew script: ), also known as Ladino or Judezmo or Spaniolit, is a Romance language derived from Castilian Old Spanish. Originally spoken in Spain, and then after the Edict of Expulsion spreading ...
or Ladino, a Jewish dialect of Spanish, has occasionally been published in Greek characters in Greece. * The Italian humanist Giovan Giorgio Trissino tried to add some Greek letters (Ɛ ε, Ꞷ ω) to
Italian orthography Italian orthography (the conventions used in writing Italian) uses the Latin alphabet to write the Italian language. This article focuses on the writing of Standard Italian, based historically on the Florentine variety of Tuscan. Written It ...
in 1524.


In mathematics and science

Greek symbols are used as symbols in
mathematics Mathematics is a field of study that discovers and organizes methods, Mathematical theory, theories and theorems that are developed and Mathematical proof, proved for the needs of empirical sciences and mathematics itself. There are many ar ...
,
physics Physics is the scientific study of matter, its Elementary particle, fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge whi ...
and other
science Science is a systematic discipline that builds and organises knowledge in the form of testable hypotheses and predictions about the universe. Modern science is typically divided into twoor threemajor branches: the natural sciences, which stu ...
s. Many symbols have traditional uses, such as lower case epsilon (ε) for an arbitrarily small positive number, lower case pi (π) for the ratio of the circumference of a circle to its diameter, capital sigma (Σ) for
summation In mathematics, summation is the addition of a sequence of numbers, called ''addends'' or ''summands''; the result is their ''sum'' or ''total''. Beside numbers, other types of values can be summed as well: functions, vectors, matrices, pol ...
, and lower case sigma (σ) for
standard deviation In statistics, the standard deviation is a measure of the amount of variation of the values of a variable about its Expected value, mean. A low standard Deviation (statistics), deviation indicates that the values tend to be close to the mean ( ...
. For many years the Greek alphabet was used by the
World Meteorological Organization The World Meteorological Organization (WMO) is a List of specialized agencies of the United Nations, specialized agency of the United Nations responsible for promoting international cooperation on atmospheric science, climatology, hydrology an ...
for naming North Atlantic hurricanes if a season was so active that it exhausted the regular list of storm names. This happened during the 2005 season (when Alpha through Zeta were used), and the 2020 season (when Alpha through Iota were used), after which the practice was discontinued. In May 2021 the
World Health Organization The World Health Organization (WHO) is a list of specialized agencies of the United Nations, specialized agency of the United Nations which coordinates responses to international public health issues and emergencies. It is headquartered in Gen ...
announced that the
variants of SARS-CoV-2 Variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are viruses that, while similar to the original, have genetic changes that are of enough significance to lead virologists to label them separately. SARS-CoV-2 is the v ...
of the virus would be named using letters of the Greek alphabet to avoid stigma and simplify communications for non-scientific audiences.


Astronomy

Greek letters are used to denote the brighter stars within each of the eighty-eight
constellation A constellation is an area on the celestial sphere in which a group of visible stars forms Asterism (astronomy), a perceived pattern or outline, typically representing an animal, mythological subject, or inanimate object. The first constellati ...
s. In most constellations, the brightest star is designated Alpha and the next brightest Beta etc. For example, the brightest star in the constellation of
Centaurus Centaurus () is a bright constellation in the southern sky. One of the 88 modern constellations by area, largest constellations, Centaurus was included among the 48 constellations listed by the 2nd-century astronomer Ptolemy, and it remains one ...
is known as
Alpha Centauri Alpha Centauri (, α Cen, or Alpha Cen) is a star system in the southern constellation of Centaurus (constellation), Centaurus. It consists of three stars: Rigil Kentaurus (), Toliman (), and Proxima Centauri (). Proxima Centauri ...
. For historical reasons, the Greek designations of some constellations begin with a lower ranked letter.


International Phonetic Alphabet

Several Greek letters are used as phonetic symbols in the
International Phonetic Alphabet The International Phonetic Alphabet (IPA) is an alphabetic system of phonetic notation based primarily on the Latin script. It was devised by the International Phonetic Association in the late 19th century as a standard written representation ...
(IPA). Several of them denote fricative consonants; the rest stand for variants of vowel sounds. The glyph shapes used for these letters in specialized phonetic fonts is sometimes slightly different from the conventional shapes in Greek typography proper, with glyphs typically being more upright and using serifs, to make them conform more with the typographical character of other, Latin-based letters in the phonetic alphabet. Nevertheless, in the Unicode encoding standard, the following three phonetic symbols are considered the same characters as the corresponding Greek letters proper: On the other hand, the following phonetic letters have Unicode representations separate from their Greek alphabetic use, either because their conventional typographic shape is too different from the original, or because they also have secondary uses as regular alphabetic characters in some Latin-based alphabets, including separate Latin uppercase letters distinct from the Greek ones. The symbol in
Americanist phonetic notation Americanist phonetic notation, also known as the North American Phonetic Alphabet (NAPA), the Americanist Phonetic Alphabet or the American Phonetic Alphabet (APA), is a system of phonetic notation originally developed by European and American ...
for the
voiceless alveolar lateral fricative The voiceless alveolar lateral fricative is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents voiceless dental, alveolar, and postalveolar lateral fricatives is , a ...
is the Greek letter lambda , but in the IPA. The IPA symbol for the
palatal lateral approximant The voiced palatal lateral approximant is a type of consonantal sound used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is , a rotated lowercase letter , and the equivalent X-SAMPA symbo ...
is , which looks similar to lambda, but is actually an inverted lowercase ''y''.


Use as numerals

Greek letters were also used to write numbers. In the classical Ionian system, the first nine letters of the alphabet stood for the numbers from 1 to 9, the next nine letters stood for the multiples of 10, from 10 to 90, and the next nine letters stood for the multiples of 100, from 100 to 900. For this purpose, in addition to the 24 letters which by that time made up the standard alphabet, three otherwise obsolete letters were retained or revived:
digamma Digamma or wau (uppercase: Ϝ, lowercase: ϝ, numeral: ϛ) is an Archaic Greek alphabets, archaic letter of the Greek alphabet. It originally stood for the sound but it has remained in use principally as a Greek numeral for 6 (number), 6. Whe ...
for 6, koppa for 90, and a rare Ionian letter for s today called
sampi Sampi (modern: ϡ; ancient shapes: , ) is an Archaic Greek alphabets, archaic letter of the Greek alphabet. It was used as an addition to the classical 24-letter alphabet in some eastern Ionic Greek, Ionic dialects of ancient Greek in the 6th a ...
, for 900. This system has remained in use in Greek up to the present day, although today it is only employed for limited purposes such as enumerating chapters in a book, similar to the way Roman numerals are used in English. The three extra symbols are today written as , and . To mark a letter as a numeral sign, a small stroke called '' keraia'' is added to the right of it.


Use by student fraternities and sororities

In North America, many college
fraternities and sororities In North America, fraternities and sororities ( and ) are social clubs at colleges and universities. They are sometimes collectively referred to as Greek life or Greek-letter organizations, as well as collegiate fraternities or collegiate sorori ...
are named with combinations of Greek letters, and are hence also known as "Greek letter organizations". This naming tradition was initiated by the foundation of the
Phi Beta Kappa The Phi Beta Kappa Society () is the oldest academic honor society in the United States. It was founded in 1776 at the College of William & Mary in Virginia. Phi Beta Kappa aims to promote and advocate excellence in the liberal arts and sciences, ...
society at the
College of William and Mary The College of William & Mary (abbreviated as W&M) is a public research university in Williamsburg, Virginia, United States. Founded in 1693 under a royal charter issued by King William III and Queen Mary II, it is the second-oldest instit ...
in 1776. The name of this fraternal organization is an acronym for the ancient Greek phrase (), which means "Love of wisdom, the guide of life" and serves as the organization's motto. Sometimes early fraternal organizations were known by their Greek letter names because the mottos that these names stood for were secret and revealed only to members of the fraternity. Different chapters within the same fraternity are almost always (with a handful of exceptions) designated using Greek letters as serial numbers. The founding chapter of each organization is its A chapter. As an organization expands, it establishes a B chapter, a Γ chapter, and so on and so forth. In an organization that expands to more than 24 chapters, the chapter after Ω chapter is AA chapter, followed by AB chapter, etc. Each of these is still a "chapter Letter", albeit a double-digit letter just as 10 through 99 are double-digit numbers. The
Roman alphabet The Latin alphabet, also known as the Roman alphabet, is the collection of letters originally used by the ancient Romans to write the Latin language. Largely unaltered except several letters splitting—i.e. from , and from —additions su ...
has a similar extended form with such double-digit letters when necessary, but it is used for columns in a table or chart rather than chapters of an organization.


Glyph variants

Some letters can occur in variant shapes, mostly inherited from medieval
minuscule Letter case is the distinction between the letters that are in larger uppercase or capitals (more formally ''majuscule'') and smaller lowercase (more formally '' minuscule'') in the written representation of certain languages. The writing system ...
handwriting. While their use in normal typography of Greek is purely a matter of font styles, some such variants have been given separate encodings in
Unicode Unicode or ''The Unicode Standard'' or TUS is a character encoding standard maintained by the Unicode Consortium designed to support the use of text in all of the world's writing systems that can be digitized. Version 16.0 defines 154,998 Char ...
. * The symbol ("curled beta") is a cursive variant form of
beta Beta (, ; uppercase , lowercase , or cursive ; or ) is the second letter of the Greek alphabet. In the system of Greek numerals, it has a value of 2. In Ancient Greek, beta represented the voiced bilabial plosive . In Modern Greek, it represe ...
(β). In the French tradition of Ancient Greek typography, β is used word-initially, and is used word-internally. * The letter
delta Delta commonly refers to: * Delta (letter) (Δ or δ), the fourth letter of the Greek alphabet * D (NATO phonetic alphabet: "Delta"), the fourth letter in the Latin alphabet * River delta, at a river mouth * Delta Air Lines, a major US carrier ...
has a form resembling a cursive capital letter D; while not encoded as its own form, this form is included as part of the symbol for the
drachma Drachma may refer to: * Ancient drachma, an ancient Greek currency * Modern drachma The drachma ( ) was the official currency of modern Greece from 1832 until the launch of the euro in 2001. First modern drachma The drachma was reintroduce ...
(a Δρ digraph) in the Currency Symbols block, at U+20AF (₯). * The letter
epsilon Epsilon (, ; uppercase , lowercase or ; ) is the fifth letter of the Greek alphabet, corresponding phonetically to a mid front unrounded vowel or . In the system of Greek numerals it also has the value five. It was derived from the Phoenic ...
can occur in two equally frequent stylistic variants, either shaped \epsilon\,\! ('lunate epsilon', like a semicircle with a stroke) or \varepsilon\,\! (similar to a reversed number 3). The symbol ϵ (U+03F5) is designated specifically for the lunate form, used as a technical symbol. * The symbol ("script theta") is a cursive form of
theta Theta (, ) uppercase Θ or ; lowercase θ or ; ''thē̂ta'' ; Modern: ''thī́ta'' ) is the eighth letter of the Greek alphabet, derived from the Phoenician letter Teth 𐤈. In the system of Greek numerals, it has a value of 9. Gree ...
(θ), frequent in handwriting, and used with a specialized meaning as a technical symbol. * The symbol ("kappa symbol") is a cursive form of
kappa Kappa (; uppercase Κ, lowercase κ or cursive ; , ''káppa'') is the tenth letter of the Greek alphabet, representing the voiceless velar plosive sound in Ancient and Modern Greek. In the system of Greek numerals, has a value of 20. It was d ...
(κ), used as a technical symbol. * The symbol \varpi\,\! ("variant pi") is an archaic script form of pi (π), also used as a technical symbol. * The letter
rho Rho (; uppercase Ρ, lowercase ρ or ; or ) is the seventeenth letter of the Greek alphabet. In the system of Greek numerals it has a value of 100. It is derived from Phoenician alphabet, Phoenician letter resh . Its uppercase form uses the same ...
(ρ) can occur in different stylistic variants, with the descending tail either going straight down or curled to the right. The symbol (U+03F1) is designated specifically for the curled form, used as a technical symbol. * The letter
sigma Sigma ( ; uppercase Σ, lowercase σ, lowercase in word-final position ς; ) is the eighteenth letter of the Greek alphabet. In the system of Greek numerals, it has a value of 200. In general mathematics, uppercase Σ is used as an operator ...
, in standard orthography, has two variants: ς, used only at the ends of words, and σ, used elsewhere. The form ("
lunate sigma Sigma ( ; uppercase Σ, lowercase σ, lowercase in word-final position ς; ) is the eighteenth letter of the Greek alphabet. In the system of Greek numerals, it has a value of 200. In general mathematics, uppercase Σ is used as an operator ...
", resembling a Latin '' c'') is a medieval stylistic variant that can be used in both environments without the final/non-final distinction. * The capital letter
upsilon Upsilon (, ; uppercase Υ, lowercase υ; ''ýpsilon'' ) or ypsilon is the twentieth letter of the Greek alphabet. In the system of Greek numerals, has a value of 400. It is derived from the phoenician alphabet, Phoenician Waw (letter), waw ...
(Υ) can occur in different stylistic variants, with the upper strokes either straight like a Latin ''Y'', or slightly curled. The symbol ϒ (U+03D2) is designated specifically for the curled form (\Upsilon), used as a technical symbol, e.g. in physics. * The letter
phi Phi ( ; uppercase Φ, lowercase φ or ϕ; ''pheî'' ; Modern Greek: ''fi'' ) is the twenty-first letter of the Greek alphabet. In Archaic and Classical Greek (c. 9th to 4th century BC), it represented an aspirated voiceless bilabial plos ...
can occur in two equally frequent stylistic variants, either shaped as \textstyle\phi\,\! (a circle with a vertical stroke through it) or as \textstyle\varphi\,\! (a curled shape open at the top). The symbol (U+03D5) is designated specifically for the closed form, used as a technical symbol. * The letter
omega Omega (, ; uppercase Ω, lowercase ω; Ancient Greek ὦ, later ὦ μέγα, Modern Greek ωμέγα) is the twenty-fourth and last letter in the Greek alphabet. In the Greek numerals, Greek numeric system/isopsephy (gematria), it has a value ...
has at least three stylistic variants of its capital form. The standard is the "open omega" (Ω), resembling an open partial circle with the opening downward and the ends curled outward. The two other stylistic variants are seen more often in modern typography, resembling a raised and underscored circle (roughly ), where the underscore may or may not be touching the circle on a tangent (in the former case it resembles a superscript omicron similar to that found in the
numero sign The numero sign or numero symbol, (also represented as Nº, No̱, No., or no.), is a Typography, typographic abbreviation of the word ''number''(''s'') indicating Ordinal numeral, ordinal numeration, especially in names and titles. For example ...
or masculine
ordinal indicator In written languages, an ordinal indicator is a character, or group of characters, following a numeral denoting that it is an ordinal number, rather than a cardinal number. Historically these letters were "elevated terminals", that is to say ...
; in the latter, it closely resembles some forms of the Latin letter Q). The open omega is always used in symbolic settings and is encoded in
Letterlike Symbols Letterlike Symbols is a Unicode block containing 80 characters which are constructed mainly from the glyphs of one or more letters. In addition to this block, Unicode includes full styled mathematical alphabets, although Unicode does not exp ...
(U+2126) as a separate code point for backward compatibility.


Computer encodings

For computer usage, a variety of encodings have been used for Greek online, many of them documented in . The two principal ones still used today are ISO/IEC 8859-7 and
Unicode Unicode or ''The Unicode Standard'' or TUS is a character encoding standard maintained by the Unicode Consortium designed to support the use of text in all of the world's writing systems that can be digitized. Version 16.0 defines 154,998 Char ...
. ISO 8859-7 supports only the monotonic orthography; Unicode supports both the monotonic and polytonic orthographies.


ISO/IEC 8859-7

For the range A0–FF (hex), it follows the Unicode range 370–3CF (see below) except that some symbols, like ©, ½, § etc. are used where Unicode has unused locations. Like all ISO-8859 encodings, it is equal to ASCII for 00–7F (hex).


Greek in Unicode

Unicode Unicode or ''The Unicode Standard'' or TUS is a character encoding standard maintained by the Unicode Consortium designed to support the use of text in all of the world's writing systems that can be digitized. Version 16.0 defines 154,998 Char ...
supports
polytonic orthography Greek orthography has used a variety of diacritics starting in the Hellenistic period. The more complex polytonic orthography (), which includes five diacritics, notates Ancient Greek phonology. The simpler monotonic orthography (), introduce ...
well enough for ordinary continuous text in modern and ancient Greek, and even many archaic forms for
epigraphy Epigraphy () is the study of inscriptions, or epigraphs, as writing; it is the science of identifying graphemes, clarifying their meanings, classifying their uses according to dates and cultural contexts, and drawing conclusions about the wr ...
. With the use of
combining character In digital typography, combining characters are Character (computing), characters that are intended to modify other characters. The most common combining characters in the Latin script are the combining diacritic, diacritical marks (including c ...
s, Unicode also supports Greek
philology Philology () is the study of language in Oral tradition, oral and writing, written historical sources. It is the intersection of textual criticism, literary criticism, history, and linguistics with strong ties to etymology. Philology is also de ...
and
dialectology Dialectology (from Ancient Greek, Greek , ''dialektos'', "talk, dialect"; and , ''-logy, -logia'') is the scientific study of dialects: subsets of languages. Though in the 19th century a branch of historical linguistics, dialectology is often now c ...
and various other specialized requirements. Most current text rendering engines do not render diacritics well, so, though alpha with macron and acute can be ''represented'' as U+03B1 U+0304 U+0301, this rarely renders well: . There are two main blocks of Greek characters in
Unicode Unicode or ''The Unicode Standard'' or TUS is a character encoding standard maintained by the Unicode Consortium designed to support the use of text in all of the world's writing systems that can be digitized. Version 16.0 defines 154,998 Char ...
. The first is "Greek and Coptic" (U+0370 to U+03FF). This block is based on ISO 8859-7 and is sufficient to write Modern Greek. There are also some archaic letters and Greek-based technical symbols. This block also supports the
Coptic alphabet The Coptic alphabet is the script used for writing the Coptic language, the most recent development of Egyptian. The repertoire of glyphs is based on the uncial Greek alphabet, augmented by letters borrowed from the Egyptian Demotic. It was ...
. Formerly, most Coptic letters shared codepoints with similar-looking Greek letters; but in many scholarly works, both scripts occur, with quite different letter shapes, so as of Unicode 4.1, Coptic and Greek were disunified. Those Coptic letters with no Greek equivalents still remain in this block (U+03E2 to U+03EF). To write polytonic Greek, one may use
combining diacritical mark In digital typography, combining characters are Character (computing), characters that are intended to modify other characters. The most common combining characters in the Latin script are the combining diacritic, diacritical marks (including c ...
s or the precomposed characters in the "Greek Extended" block (U+1F00 to U+1FFF).


Combining and letter-free diacritics

Combining and spacing (letter-free)
diacritical mark A diacritic (also diacritical mark, diacritical point, diacritical sign, or accent) is a glyph added to a letter or to a basic glyph. The term derives from the Ancient Greek (, "distinguishing"), from (, "to distinguish"). The word ''diacrit ...
s pertaining to
Greek language Greek (, ; , ) is an Indo-European languages, Indo-European language, constituting an independent Hellenic languages, Hellenic branch within the Indo-European language family. It is native to Greece, Cyprus, Italy (in Calabria and Salento), south ...
:


Encodings with a subset of the Greek alphabet

IBM International Business Machines Corporation (using the trademark IBM), nicknamed Big Blue, is an American Multinational corporation, multinational technology company headquartered in Armonk, New York, and present in over 175 countries. It is ...
code pages 437, 860, 861, 862, 863, and 865 contain the letters ΓΘΣΦΩαδεπστφ (plus β as an alternative interpretation for ß).


See also

* Greek Font Society *
Greek ligatures Greek ligatures are graphic combinations of the letters of the Greek alphabet that were used in medieval handwritten Greek and in early printing. Ligature (typography), Ligatures were used in the Cursive#Greek, cursive writing style and very e ...
* Palamedes *
Romanization of Greek Romanization of Greek is the transliteration ( letter-mapping) or transcription (sound-mapping) of text from the Greek alphabet into the Latin alphabet. History The conventions for writing and romanizing Ancient Greek and Modern Greek diffe ...


Notes


References


Bibliography

* * * * * * ** ** ** * * * * * * * * * reek translation of ''Greek: a history of the language and its speakers'', London 1997* * * * * * * * * * – selections from the Gospels in Macedonian. * * * * * * * * * * * * * * * * * * * *


External links


Greek and Coptic
character list in Unicode
Unicode collation charts
ncluding Greek and Coptic letters, sorted by shape
Examples of Greek handwriting
*



(Alan Wood)



a browser-based tool
GFS Typefaces
a collection of free fonts by Greek Font Society {{Authority control