S is the nineteenth letter of the English alphabet. S may also refer to:

History

* an

Anglo-Saxon charter Anglo-Saxon charters are documents from the History of Anglo-Saxon England, early medieval period in England which typically made a grant of Real Estate, land or recorded a Privilege (legal ethics), privilege. The earliest surviving charters were ...

's number in Peter Sawyer's, catalogue

Language and linguistics

Long s The long s, , also known as the medial ''s'' or initial ''s'', is an Archaism, archaic form of the lowercase letter , found mostly in works from the late 8th to early 19th centuries. It replaced one or both of the letters ''s'' in a double-''s ...

(ſ), a form of the lower-case letter s formerly used where "s" occurred in the middle or at the beginning of a word * -s, a suffix added to some English surnames, originally meaning "son of" * , 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 ...

symbol for a

voiceless alveolar sibilant The voiceless alveolar fricatives are a type of fricative consonant pronounced with the tip or blade of the tongue against the alveolar ridge (gum line) just behind the teeth. This refers to a class of sounds, not a single sound. There are at leas ...

sound * S, the subject of an

intransitive verb In grammar, an intransitive verb is a verb, aside from an auxiliary verb, whose context does not entail a transitive object. That lack of an object distinguishes intransitive verbs from transitive verbs, which entail one or more objects. Add ...

* Ѕ, the Cyrillic letter

Dze Dze (Ѕ ѕ; italics: ''Ѕ ѕ'') is a letter of the Cyrillic script, used in the Macedonian alphabet to represent the voiced alveolar affricate , similar to the pronunciation of in "needs" or "kids" in English. It is derived from th ...

* Տ, the Armenian letter tyun * Ⴝ, the Georgian Asomtavruli letter

ch'ari Ch'ari (asomtavruli , nuskhuri , mkhedruli ჭ, mtavruli Ჭ) is the 33rd letter of the three Georgian scripts.Machavariani, p. 136 In the system of Georgian numerals it has a value of 5000.Mchedlidze, (2) p. 114 Ch'ari is a palato-alveolar ejec ...

Transportation

S (New York City Subway service) Three services in the New York City Subway are designated as a S (shuttle train, shuttle) service. These services operate as full-time or almost full-time shuttles. In addition, three services run as shuttles during late night hours but retain t ...

, one of the three services: ** Franklin Avenue Shuttle **

42nd Street Shuttle The 42nd Street Shuttle is a New York City Subway shuttle train service that operates in Manhattan. The shuttle is sometimes referred to as the Grand Central/Times Square Shuttle, since these are the only two stations it serves. The shuttle op ...

(also called the Grand Central/Times Square Shuttle) (internally referred to as the 0) ** Rockaway Park Shuttle (also called Rockaway Shuttle) (internally referred to as the H) *

Toei Shinjuku Line The is a rapid transit line in Tokyo and Chiba Prefecture, Japan, operated by the municipal Toei Subway. The line runs between in Ichikawa, Chiba in the east and in the west. At Shinjuku, most trains continue as through services to on the ...

, a subway service operated by the Tokyo Metropolitan Bureau of Transportation (Toei), labeled Toei Shinjuku line symbol

Sennichimae Line is an underground rapid transit line in Osaka, Japan. It is one of the lines of Osaka Metro. It links the northwestern district of Fukushima-ku and the southeastern district of Ikuno-ku with the central commercial and entertainment district ...

, a subway service operated by the Osaka Metro, labeled Osaka Metro Sennichimae line symbol

, the official West Japan Railway Company service symbol for the Kansai Airport Line.

Mathematics and logic

Integral symbol The integral symbol (''see below'') is used to denote integrals and Antiderivative, antiderivatives in mathematics, especially in calculus. History The notation was introduced by the Germany, German mathematician Gottfried Wilhelm Leibniz i ...

(∫), used in mathematics to denote integrals and antiderivatives * S combinator in combinatory logic *

Sphere A sphere (from Ancient Greek, Greek , ) is a surface (mathematics), surface analogous to the circle, a curve. In solid geometry, a sphere is the Locus (mathematics), set of points that are all at the same distance from a given point in three ...

* S (set theory), an axiomatic set theory * ''s(n)'', the

aliquot sum In number theory, the aliquot sum of a positive integer is the sum of all proper divisors of , that is, all divisors of other than itself. That is, s(n)=\sum_ d \, . It can be used to characterize the prime numbers, perfect numbers, sociabl ...

of an integer n

Physics and chemistry

Sulfur Sulfur ( American spelling and the preferred IUPAC name) or sulphur ( Commonwealth spelling) is a chemical element; it has symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms ...

, symbol S, a chemical element * s, for

second The second (symbol: s) is a unit of time derived from the division of the day first into 24 hours, then to 60 minutes, and finally to 60 seconds each (24 × 60 × 60 = 86400). The current and formal definition in the International System of U ...

, the SI unit of time * S, the symbol for

entropy Entropy is a scientific concept, most commonly associated with states of disorder, randomness, or uncertainty. The term and the concept are used in diverse fields, from classical thermodynamics, where it was first recognized, to the micros ...

* S, a non-SI unit used to designate molecule size named after the

Svedberg In chemistry, a Svedberg unit or svedberg (symbol S, sometimes Sv) is a non- SI metric unit for sedimentation coefficients. The Svedberg unit offers a measure of a particle's size indirectly based on its sedimentation rate under acceleration ...

sedimentation coefficient * ''S'', a label that denotes one of two chiral center configurations in the ''R''/''S'' system * ''s'', one of the

Mandelstam variables In theoretical physics, the Mandelstam variables are numerical quantities that encode the energy Energy () is the physical quantity, quantitative physical property, property that is transferred to a physical body, body or to a physical ...

, the square of the invariant mass *

Siemens (unit) The siemens (symbol: S) is the unit of electric conductance, electric susceptance, and electric admittance in the International System of Units (SI). Conductance, susceptance, and admittance are the reciprocals of resistance, reactance, an ...

, the SI derived unit of electric conductance *

S-block A block of the periodic table is a set of elements unified by the atomic orbitals their valence electrons or vacancies lie in. The term seems to have been first used by Charles Janet. Each block is named after its characteristic orbital: s-bl ...

of the periodic table, which includes alkali metals, alkaline earth metals, and hydrogen and helium *

Spin (physics) Spin is an Intrinsic and extrinsic properties, intrinsic form of angular momentum carried by elementary particles, and thus by List of particles#Composite particles, composite particles such as hadrons, atomic nucleus, atomic nuclei, and atoms. S ...

* s, an abbreviation for

solid Solid is a state of matter where molecules are closely packed and can not slide past each other. Solids resist compression, expansion, or external forces that would alter its shape, with the degree to which they are resisted dependent upon the ...

Biology and medicine

Serine Serine (symbol Ser or S) is an α-amino acid that is used in the biosynthesis of proteins. It contains an α- amino group (which is in the protonated − form under biological conditions), a carboxyl group (which is in the deprotonated − ...

, a standard amino acid abbreviated as Ser or S * ATC code S ''Sensory organs'', a section of the Anatomical Therapeutic Chemical Classification System *

S phase S phase (Synthesis phase) is the phase of the cell cycle in which DNA is replicated, occurring between G1 phase and G2 phase. Since accurate duplication of the genome is critical to successful cell division, the processes that occur during S ...

or synthesis phase, a period in the cell cycle during interphase

Computing

Samsung Galaxy S (2010 smartphone) The Samsung Galaxy S (retrospectively referred to unofficially as the Samsung Galaxy S1, Galaxy SI or simply S1) is a touchscreen-enabled, slate-format Android smartphone developed and marketed by Samsung Electronics; it is the first smartphon ...

, the first flagship smartphone of the Samsung Galaxy S series *

S (programming language) S is a statistical programming language developed primarily by John Chambers (statistician), John Chambers and (in earlier versions) Rick Becker, Trevor Hastie, William S. Cleveland, William Cleveland and Allan Wilks of Bell Labs, Bell Laboratorie ...

, an environment for statistical computing and graphics * <s>, the opening tag for the

HTML element An HTML element is a type of HTML (HyperText Markup Language) document component, one of several types of HTML nodes (there are also text nodes, comment nodes and others). The first used version of HTML was written by Tim Berners-Lee in 199 ...

denoting information that is "no longer accurate or no longer relevant", usually rendered as ~~strike-through text~~

People

* ''S'', the pen name of

Percy Bysshe Shelley Percy Bysshe Shelley ( ; 4 August 1792 – 8 July 1822) was an English writer who is considered one of the major English Romantic poets. A radical in his poetry as well as in his political and social views, Shelley did not achieve fame durin ...

* "S.", the nickname for

Solomon Shereshevsky Solomon Veniaminovich Shereshevsky (; 1886 – 1 May 1958), also known simply as 'Ш' ('Sh'), 'S.', or Luria's S, was a Soviet journalist and mnemonist active in the 1920s. He was the subject of Alexander Luria's case study ''The Mind of a Mnemon ...

(1886-1958), a Russian journalist, mnemonist, and synesthete notable for his unusual memory abilities

Arts and entertainment

Books

* ''S.'' (Dorst novel), written by Doug Dorst based on story by J.J. Abrams * ''S.'' (Updike novel), part of the Scarlet Letter trilogy by John Updike * ''S'' (novel series), a 2005-2006 light novel series * '' "S" Is for Silence'', the nineteenth novel in Sue Grafton's "Alphabet mystery" series, published in 2005

Music

* S, the stage name of singer-songwriter and guitarist Jenn Champion *

S (group) S (에스) is a South Korean project group consisting of three members: Kangta, Lee Ji-hoon and Shin Hye-sung. The group debuted in 2003, under the SM Entertainment label. After 11 years, they released and promoted another mini-album in 2014. ...

, a short-lived South Korean music group active in 2003 and 2014 * ''S'' (EP), a 2001 EP by Japanese musical duo NaNa * Numbering of Franz Liszt's works according to Humphrey Searle's catalogue * "S" (song), by Japanese band Sid

Television

*S, the production code for the 1965 ''Doctor Who'' serial '' The Time Meddler'' *The S logo used for

Globo Globo (meaning ''globe'' in Portuguese, Spanish and Italian) may refer to: *Grupo Globo, a Brazilian conglomerate primarily in mass media **TV Globo, a television network ***GloboNews, a television 24-hour news channel ***Globo (Portuguese TV cha ...

’s weekly movie program ''SuperCine''.

Comics

* S, the protagonist of '' Heavy Liquid''

Automobiles

Production models

* Aion S, a Chinese electric compact executive sedan *

Jaguar S-Type (1963) The Jaguar S-Type is a luxury saloon car produced by Jaguar Cars in the United Kingdom from 1963 to 1968. Announced in 30 September 1963 it was a technically more sophisticated development of the Mark 2, offering buyers a more luxurious alternat ...

, a British sports saloon *

Jaguar S-Type (1999) The Jaguar S-Type is an executive car that debuted at the 1998 Birmingham Motor Show and was marketed by Jaguar Cars, Jaguar for model years 1999–2007, reviving the nameplate of the company's Jaguar S-Type (1963), 1963–1968 S-Type as a four ...

, a British executive saloon *

Mercedes-Benz S-Class The Mercedes-Benz S-Class, formerly known as "special class" (), is a series of full-sized luxury vehicle, luxury sedans and Coupe, coupés produced by the German automaker Mercedes-Benz. The S-Class is the designation for top-of-the-line Mercede ...

, a German full-size luxury car series *

Mini Cooper S The Mini is a very small two-door, four-seat car, produced for four decades over a single generation, with many names and variants, by the British Motor Corporation (BMC) and its successors British Leyland and the Rover Group, and finally (b ...

, a British hot hatch *

Neta S The Neta S is a battery electric vehicle, battery electric mid-size car produced by the Chinese electric car manufacturer Hozon Auto under the Neta (car marque), Neta (Nezha) brand. Concept car Hozon Auto launched the Neta S during the 2021 Sh ...

, a Chinese electric sedan *

Tesla Model S The Tesla Model S is a battery-electric, four-door full-size car produced by the American automaker Tesla since 2012. The automaker's second vehicle and longest-produced model, the Model S has both received mixed reviews from critics and a ...

, an American electric executive sedan

Prototypes and concepts

Sony Vision-S The Sony Vision-S is an all-electric automobile platform that was developed by Sony, with the first model unveiled at the 2020 Consumer Electronics Show (CES) in Las Vegas as the Vision-S Concept. When the second concept was unveiled in 2022 as th ...

, a Japanese mid-size electric concept sedan

Series and trims

* Acura Type-S, a range of Japanese performance vehicles * Audi S, a range of German performance vehicles * Honda S series, series of Japanese sports cars *

Jaguar S Jaguar R and R-S/SVR models are a range of Performance car, high performance versions of certain car models from the British automotive marque Jaguar Cars, part of parent business Jaguar Land Rover. These cars primarily focus on enhanced "sports ...

, a range of British performance vehicles * Saviem S, a range of French medium-duty cab-over trucks

Other uses

* S by Shakira, the first woman's fragrance by Colombian singer songwriter Shakira *

Safety (gridiron football position) Safety (S), historically known as a safetyman, is a position in gridiron football on the American football positions#Defense, defense. The safeties are defensive backs who line up ten to fifteen yards from the line of scrimmage. There are two var ...

South South is one of the cardinal directions or compass points. The direction is the opposite of north and is perpendicular to both west and east. Etymology The word ''south'' comes from Old English ''sūþ'', from earlier Proto-Germanic ''*sunþa ...

on a map or compass, one of the four cardinal directions * s, the SI symbol for

Shilling (British coin) The United Kingdom, British shilling, abbreviated "1s" or "1/-", was a unit of currency and a denomination of Coins of the United Kingdom, sterling coinage worth of one Pound (currency), pound, or twelve Penny (British pre-decimal coin), pre-deci ...

* Old Israeli Shekel, denominated as S *

S postcode area The S postcode area, also known as the Sheffield postcode area, is a group of postcode districts in England, which are subdivisions of eight post towns. These cover most of South Yorkshire (including Sheffield, Barnsley, Rotherham and Mexborough ...

, a postcode area including Sheffield, England * A party label for the

Swedish Social Democratic Party The Swedish Social Democratic Party, formally the Swedish Social Democratic Workers' Party ( , S or SAP), usually referred to as The Social Democrats ( ), is a social democratic political party in Sweden. The party is member of the Progressiv ...

Strike (baseball) In baseball, the strike zone is the area of space through which a Pitch (baseball), pitch must pass in order to be called a strike even if the batter does not swing. The strike zone is defined as the volume of space above Baseball field#Home bas ...

S band The S band is a designation by the Institute of Electrical and Electronics Engineers (IEEE) for a part of the microwave band of the electromagnetic spectrum covering frequencies from 2 to 4 gigahertz (GHz). Thus it crosses the conventiona ...

, a band of radio which ranges from 2 to 4 GHz * Sierra, the military time zone code for UTC−06:00 *

Cool S The Cool S, also known as the Universal S, the Stüssy S, the Super S, the Pointy S, and the Graffiti S, is a graffiti Graffiti (singular ''graffiti'', or ''graffito'' only in graffiti archeology) is writing or drawings made on a wall or o ...

, a graffiti sign