three-letter initialism
   HOME

TheInfoList



Click Here for Items Related To - three-letter initialism
OR:
three-letter initialism on:   [Wikipedia]   [Google]   [Amazon]

A three-letter acronym (TLA), or three-letter abbreviation, is an abbreviation consisting of three letters. These are usually the initial letters of the words of the phrase abbreviated, and are written in capital letters (upper case); three-letter ''abbreviations'' such as ''etc.'' and ''Mrs.'' are not three-letter ''acronyms'', but "TLA" is a TLA (an example of an
autological An autological word (also called homological word) is a word that expresses a property that it also possesses (e.g., "word" is a word, "noun" is a noun, "English" is an English word, "wikt:pentasyllabic, pentasyllabic" has five syllables, and " ...
abbreviation). Most three-letter abbreviations are not, strictly,
acronym An acronym is a word or name formed from the initial components of a longer name or phrase. Acronyms are usually formed from the initial letters of words, as in ''NATO'' (''North Atlantic Treaty Organization''), but sometimes use syllables, as ...
s, but rather initialisms: all the letters are pronounced as the names of letters, as in '' APA'' . Some are true acronyms, pronounced as a word: as with computed axial tomography, for example, CAT is almost always pronounced as
the animal ''The Animal'' is a 2001 American comedy film directed by Luke Greenfield, written by Rob Schneider and Tom Brady, and starring Schneider in the lead role, Colleen Haskell, John C. McGinley, Guy Torry, and Edward Asner. The film depicts a police ...
's name () in "CAT scan". Even the ''initialisms'' are however considered ''three-letter acronyms'', because that term appeared first in widespread use, and is overwhelmingly popular today.


Examples

* Countries:
SRI Shri (; , ) is a Sanskrit term denoting resplendence, wealth and prosperity, primarily used as an honorific. The word is widely used in South and Southeast Asian languages such as Marathi, Malay (including Indonesian and Malaysian), Javanes ...
,
USA The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...
, CAR,
UAE The United Arab Emirates (UAE; ar, اَلْإِمَارَات الْعَرَبِيَة الْمُتَحِدَة ), or simply the Emirates ( ar, الِْإمَارَات ), is a country in Western Asia (The Middle East). It is located at th ...
,
DRC The Democratic Republic of the Congo (french: République démocratique du Congo (RDC), colloquially "La RDC" ), informally Congo-Kinshasa, DR Congo, the DRC, the DROC, or the Congo, and formerly and also colloquially Zaire, is a country in ...
, etc. * Famous people:
FDR Franklin Delano Roosevelt (; ; January 30, 1882April 12, 1945), often referred to by his initials FDR, was an American politician and attorney who served as the 32nd president of the United States from 1933 until his death in 1945. As the ...
,
JFK John Fitzgerald Kennedy (May 29, 1917 – November 22, 1963), often referred to by his initials JFK and the nickname Jack, was an American politician who served as the 35th president of the United States from 1961 until his assassination i ...
, MLK, OBL, RBG, RDJ and MJK * Computer phrases: CPU,
DOS DOS is shorthand for the MS-DOS and IBM PC DOS family of operating systems. DOS may also refer to: Computing * Data over signalling (DoS), multiplexing data onto a signalling channel * Denial-of-service attack (DoS), an attack on a communicat ...
,
RAM Ram, ram, or RAM may refer to: Animals * A male sheep * Ram cichlid, a freshwater tropical fish People * Ram (given name) * Ram (surname) * Ram (director) (Ramsubramaniam), an Indian Tamil film director * RAM (musician) (born 1974), Dutch * ...
,
ROM Rom, or ROM may refer to: Biomechanics and medicine * Risk of mortality, a medical classification to estimate the likelihood of death for a patient * Rupture of membranes, a term used during pregnancy to describe a rupture of the amniotic sac * ...
, and
GNU GNU () is an extensive collection of free software (383 packages as of January 2022), which can be used as an operating system or can be used in parts with other operating systems. The use of the completed GNU tools led to the family of operat ...
* File extensions: JPG, PDF, and XLS * Corporations: BMW, IBM,
AMD Advanced Micro Devices, Inc. (AMD) is an American multinational semiconductor company based in Santa Clara, California, that develops computer processors and related technologies for business and consumer markets. While it initially manufactur ...
and
NEC is a Japanese multinational information technology and electronics corporation, headquartered in Minato, Tokyo. The company was known as the Nippon Electric Company, Limited, before rebranding in 1983 as NEC. It provides IT and network soluti ...
* Currency:
USD The United States dollar (symbol: $; code: USD; also abbreviated US$ or U.S. Dollar, to distinguish it from other dollar-denominated currencies; referred to as the dollar, U.S. dollar, American dollar, or colloquially buck) is the official ...
,
GBP Sterling (abbreviation: stg; Other spelling styles, such as STG and Stg, are also seen. ISO code: GBP) is the currency of the United Kingdom and nine of its associated territories. The pound ( sign: £) is the main unit of sterling, and t ...
, and CHF * Business: CEO,
CFO The chief financial officer (CFO) is an officer of a company or organization that is assigned the primary responsibility for managing the company's finances, including financial planning, management of financial risks, record-keeping, and financ ...
and other C-level officers * Three Letter Agencies:
CIA The Central Intelligence Agency (CIA ), known informally as the Agency and historically as the Company, is a civilian foreign intelligence service of the federal government of the United States, officially tasked with gathering, processing, ...
,
FBI The Federal Bureau of Investigation (FBI) is the domestic intelligence and security service of the United States and its principal federal law enforcement agency. Operating under the jurisdiction of the United States Department of Justice, t ...
, CBI, FSB, and
NSA The National Security Agency (NSA) is a national-level intelligence agency of the United States Department of Defense, under the authority of the Director of National Intelligence (DNI). The NSA is responsible for global monitoring, collecti ...
*
Television network A television network or television broadcaster is a telecommunications network for distribution of television program content, where a central operation provides programming to many television stations or pay television providers. Until the mid- ...
s: ABC ( Aus.,
U.S. The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...
),
BBC #REDIRECT BBC #REDIRECT BBC Here i going to introduce about the best teacher of my life b BALAJI sir. He is the precious gift that I got befor 2yrs . How has helped and thought all the concept and made my success in the 10th board exam. ...
...
(UK), CBC (
Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...
, Japan), and
NHK , also known as NHK, is a Japanese public broadcaster. NHK, which has always been known by this romanized initialism in Japanese, is a statutory corporation funded by viewers' payments of a television license fee. NHK operates two terrestr ...
(Japan) *
Personal advertisement A personal advertisement, sometimes called a contact ad, is a form of classified advertising in which a person seeks to find another person for friendship, romance, marriage, or sexual activity. In British English, it is commonly known as an adv ...
s: SBM for Single Black Male, STR for Short Term Relationship * Chemistry, biology, pharmaceuticals: GMO,
LSD Lysergic acid diethylamide (LSD), also known colloquially as acid, is a potent psychedelic drug. Effects typically include intensified thoughts, emotions, and sensory perception. At sufficiently high dosages LSD manifests primarily mental, vi ...
and
MSG Monosodium glutamate (MSG), also known as sodium glutamate, is the sodium Salt (chemistry), salt of glutamic acid. MSG is found naturally in some foods including tomatoes and cheese in this glutamic acid form. MSG is used in cooking as a fl ...
* Religion:
LDS LDS may refer to: Organizations * LDS Hospital, Salt Lake City, Utah, US Religion * Latter Day Saint movement (LDS movement), a collection of independent church groups **The Church of Jesus Christ of Latter-day Saints, the largest group within t ...
, SBC and
SDA SDA or sda may refer to: Educational institutions * San Dieguito Academy, Encinitas, California, US * SDA Bocconi School of Management, in Milan, Italy Science and technology Biology * Specific dynamic action, the thermic effect of food * Str ...
* Clinical medicine:
CAD Computer-aided design (CAD) is the use of computers (or ) to aid in the creation, modification, analysis, or optimization of a design. This software is used to increase the productivity of the designer, improve the quality of design, improve co ...
and CHF * Communications shorthand:
LOL LOL, or lol, is an initialism for laughing out loud and a popular element of Internet slang. It was first used almost exclusively on Usenet, but has since become widespread in other forms of computer-mediated communication and even face-to ...
and OMG * Military and weaponry: BFR and RPG * Wars and political conflicts: HYW and
WWI World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...
*
IATA airport codes An IATA airport code, also known as an IATA location identifier, IATA station code, or simply a location identifier, is a three-character alphanumeric geocode designating many airports and metropolitan areas around the world, defined by the ...
:
LAX Los Angeles International Airport , commonly referred to as LAX (with each letter pronounced individually), is the primary international airport serving Los Angeles, California and its surrounding metropolitan area. LAX is located in the W ...
and LHR * Academic testing: ACT,
SAT The SAT ( ) is a standardized test widely used for college admissions in the United States. Since its debut in 1926, its name and scoring have changed several times; originally called the Scholastic Aptitude Test, it was later called the Schol ...
* Musical groups:
R.E.M. R.E.M. was an American rock band from Athens, Georgia, formed in 1980 by drummer Bill Berry, guitarist Peter Buck, bassist Mike Mills, and lead vocalist Michael Stipe, who were students at the University of Georgia. One of the first alternati ...
,
XTC XTC were an English rock band formed in Swindon in 1972. Fronted by songwriters Andy Partridge (guitars, vocals) and Colin Moulding (bass, vocals), the band gained popularity during the rise of punk and new wave in the 1970s, later playing in ...
,
TLC TLC may refer to: Arts and entertainment Television * ''TLC'' (TV series), a 2002 British situational comedy television series that aired on BBC2 * TLC (TV network), formerly the Learning Channel, an American cable TV network ** TLC (Asia), an A ...
, E.L.O.,
MC5 MC5, also commonly called The MC5, is an American rock band formed in Lincoln Park, Michigan, in 1963. The original line-up consisted of Rob Tyner (vocals) Wayne Kramer (guitar), Fred "Sonic" Smith (guitar), Michael Davis (bass), and Dennis ...
, GBH,
O.A.R. O.A.R. (short for Of A Revolution) is an American rock band, founded in 1996 in Rockville, Maryland. The band consists of lead vocalist/guitarist Marc Roberge, drummer Chris Culos, guitarist Richard On, bassist Benj Gershman, saxophonist/guitar ...
, MDC, D.R.I., JFA * Canine registries: AKC and CKC * Sports organizations: NFL,
MLB Major League Baseball (MLB) is a professional baseball organization and the oldest major professional sports league in the world. MLB is composed of 30 total teams, divided equally between the National League (NL) and the American League (AL), ...
, (North America);
AFL AFL may refer to: Sports * American Football League (AFL), a name shared by several separate and unrelated professional American football leagues: ** American Football League (1926) (a.k.a. "AFL I"), first rival of the National Football Leagu ...
and NRL (Australia); NPB (Japan); ACB, LFP (Spain);
IPL The Indian Premier League (IPL), also known as TATA IPL for sponsorship reasons, is a men's T20 franchise cricket league of India. It is annually contested by ten teams based out of seven Indian cities and three Indian states. The leagu ...
(India), EPL (England), WBO * Ship prefixes: HMS, USS and RMS * State postal abbreviations:
NSW ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...
,
QLD ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , establishe ...
, VIC and TAS (Australia) * Political Parties:
BJP The Bharatiya Janata Party (BJP; ; ) is a political party in India, and one of the two major Indian political parties alongside the Indian National Congress. Since 2014, it has been the ruling political party in India under Narendra Mo ...
, CCP,
GOP The Republican Party, also referred to as the GOP ("Grand Old Party"), is one of the Two-party system, two Major party, major contemporary political parties in the United States. The GOP was founded in 1854 by Abolitionism in the United Stat ...
and AAP *Air Navigation Services (
ANS Ans or ANS or ''variation'', may refer to: Places * Ans, Belgium, a municipality in Belgium * Ans, Denmark, a village in Denmark * Angus, Scotland, UK; a council area by its Chapman code * Ainsdale railway station, England, UK (by station code ...
):
SAR SAR or Sar may refer to: Places * Sar (river), Galicia, Spain * Sar, Bahrain, a residential district * Sar, Iran (disambiguation), several places in Iran * Sar, Tibet, Tibet Autonomous Region of China * Šar Mountains, in southeastern Europe ...
,
AIS AIS may refer to: Medicine * Abbreviated Injury Scale, an anatomical-based coding system to classify and describe the severity of injuries * Acute ischemic stroke, the thromboembolic type of stroke * Androgen insensitivity syndrome, an intersex ...
, FPC, ATM, MET, CNS, ASM, ATS, ATC,
FIS FIS or fis may refer to: Science and technology * '' Fis'', an ''E. Coli'' gene * Fis phenomenon, a phenomenon in linguistics * F♯ (musical note) * Flight information service, an air traffic control service * Frame Information Structure, a Se ...


History and origins

The exact phrase ''three-letter acronym'' appeared in the sociology literature in 1975. Three-letter acronyms were used as
mnemonic A mnemonic ( ) device, or memory device, is any learning technique that aids information retention or retrieval (remembering) in the human memory for better understanding. Mnemonics make use of elaborative encoding, retrieval cues, and imag ...
s in biological sciences, from 1977 and their practical advantage was promoted by Weber in 1982. They are used in many other fields, but the term TLA is particularly associated with computing. In 1980, the manual for the Sinclair
ZX81 The ZX81 is a home computer that was produced by Sinclair Research and manufactured in Dundee, Scotland, by Timex Corporation. It was launched in the United Kingdom in March 1981 as the successor to Sinclair's ZX80 and designed to be a low-cos ...
home computer used and explained TLA. Steven Vickers ''ZX81 Basic Programming'', Sinclair Research Limited, page 161 "As you can see, everything has a three letter abbreviation (TLA)." The specific generation of three-letter acronyms in computing was mentioned in a JPL report of 1982.TDA Progress Report
R. Hull (1982) An Introduction to the new Productivity Information Management System page 176 In 1988, in a paper titled "On the Cruelty of Really Teaching Computing Science", eminent computer scientist Edsger W. Dijkstra wrote (disparagingly), "No endeavour is respectable these days without a TLA" By 1992 it was in a
Microsoft Microsoft Corporation is an American multinational technology corporation producing computer software, consumer electronics, personal computers, and related services headquartered at the Microsoft Redmond campus located in Redmond, Washin ...
handbook.


Combinatorics

The number of possible three-letter abbreviations using the 26 letters of the alphabet from A to Z (AAA, AAB ... to ZZY, ZZZ) is 26 × 26 × 26 = 17,576. An additional 26 × 26 × 10 = 6760 can be produced for each single position allowed to be a digit 0-9, such as
2FA Multi-factor authentication (MFA; encompassing two-factor authentication, or 2FA, along with similar terms) is an electronic authentication method in which a user is granted access to a website or application only after successfully presenting ...
,
P2P P2P may refer to: * Pay to play, where money is exchanged for services * Peer-to-peer, a distributed application architecture in computing or networking ** List of P2P protocols * Phenylacetone, an organic compound commonly known as P2P * Poin ...
, or
WW2 World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing ...
, giving a total of 37,856 such three-character strings. In standard
English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national ide ...
,
WWW The World Wide Web (WWW), commonly known as the Web, is an information system enabling documents and other web resources to be accessed over the Internet. Documents and downloadable media are made available to the network through web se ...
is the TLA whose
pronunciation Pronunciation is the way in which a word or a language is spoken. This may refer to generally agreed-upon sequences of sounds used in speaking a given word or language in a specific dialect ("correct pronunciation") or simply the way a particular ...
requires the most syllables—typically nine. The usefulness of TLAs typically comes from its being quicker to say than the phrase it represents; however saying 'WWW' in English requires three times as many syllables as the phrase it is meant to abbreviate (World Wide Web). "WWW" is sometimes abbreviated to "dubdubdub" in speech.


References in popular culture

* As early as 1967, the musical Hair included the song "Initials", whose final verse consisted only of TLAs, viz: " LBJ IRT
USA The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...
LSD Lysergic acid diethylamide (LSD), also known colloquially as acid, is a potent psychedelic drug. Effects typically include intensified thoughts, emotions, and sensory perception. At sufficiently high dosages LSD manifests primarily mental, vi ...
. LSD LBJ
FBI The Federal Bureau of Investigation (FBI) is the domestic intelligence and security service of the United States and its principal federal law enforcement agency. Operating under the jurisdiction of the United States Department of Justice, t ...
CIA The Central Intelligence Agency (CIA ), known informally as the Agency and historically as the Company, is a civilian foreign intelligence service of the federal government of the United States, officially tasked with gathering, processing, ...
. FBI CIA LSD LBJ." * In 1999, the author
Douglas Adams Douglas Noel Adams (11 March 1952 – 11 May 2001) was an English author and screenwriter, best known for ''The Hitchhiker's Guide to the Galaxy''. Originally a 1978 The Hitchhiker's Guide to the Galaxy (radio series), BBC radio comedy, ''The H ...
remarked: "The World Wide Web is the only thing I know of whose shortened form takes three times longer to say than what it's short for." * According to the Jargon File, a journalist once asked hacker
Paul Boutin Paul Boutin (born December 11, 1961 in Lewiston, Maine) is an American magazine writer and editor who writes about technology in a pop-culture context. Boutin, who began writing for ''Wired'' in 1997, wrote for ''The New York Times'' from 2003 ...
what he thought the biggest problem in computing in the 1990s would be. Paul's straight-faced response was: "There are only 17,000 three-letter acronyms." * The Jargon File also mentions the abbreviation "ETLA" for "extended three-letter acronym" to refer to four-letter acronyms/abbreviations. "Extended three-letter acronym" is sometimes abbreviated to "XTLA".TLA
jargon.net * In the comic strip
Dilbert ''Dilbert'' is an American comic strip written and illustrated by Scott Adams, first published on April 16, 1989. It is known for its satirical office humor about a white-collar, micromanaged office with engineer Dilbert as the title charact ...
the title character is working on a project called TTP. The initials stand for 'The TTP Project.' This is also an example of a
recursive acronym A recursive acronym is an acronym that refers to itself, and appears most frequently in computer programming. The term was first used in print in 1979 in Douglas Hofstadter's book '' Gödel, Escher, Bach: An Eternal Golden Braid'', in which Hofs ...
.


See also

* ISO 4217 (currency code) *
List of acronyms Lists of acronyms contain acronyms, a type of abbreviation formed from the initial components of the words of a longer name or phrase. They are organized alphabetically and by field. Alphabetical * List of acronyms: 0–9 * List of acronyms: A ...
*
List of airports by IATA code The following are lists of airports by IATA code and ICAO code: By IATA code By ICAO code {{DEFAULTSORT:IATA code Airports by IATA code ...
* List of computing and IT abbreviations * * List of three-letter broadcast call signs in the United States *
Photographers' abbreviations During most of the 20th century photography depended mainly upon the photochemical technology of silver halide emulsions on glass plates or roll film.Langford, Michael. ''Story of Photography''. Focal Press, 1998, pp. 224. . Early in the 21 ...
*
Q code The Q-code is a standardised collection of three-letter codes that each start with the letter "Q". It is an operating signal initially developed for commercial radiotelegraph communication and later adopted by other radio services, especially ...
*
RAS syndrome RAS syndrome (where "RAS" stands for "redundant acronym syndrome", making the phrase "RAS syndrome" homological) is the redundant use of one or more of the words that make up an acronym (or other initialism) in conjunction with the abbreviated f ...
*
Acronym An acronym is a word or name formed from the initial components of a longer name or phrase. Acronyms are usually formed from the initial letters of words, as in ''NATO'' (''North Atlantic Treaty Organization''), but sometimes use syllables, as ...
* Alphabet Agencies


References

{{DEFAULTSORT:Three-letter Acronym Abbreviations T