S (disambiguation)

S is the nineteenth letter of the English alphabet.

S may also refer to:

History

 * an Anglo-Saxon charter's number in Peter Sawyer's, catalogue

Language and linguistics

 * Long 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 symbol for a voiceless alveolar sibilant sound
 * S, the subject of an intransitive verb
 * Ѕ, the Cyrillic letter Dze

Transportation

 * S (New York City Subway service), one of the three services:
 * Franklin Avenue Shuttle
 * 42nd Street Shuttle (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, a subway service operated by the Tokyo Metropolitan Bureau of Transportation (Toei), labeled Toei Shinjuku line symbol.svg
 * Sennichimae Line, a subway service operated by the Osaka Metro, labeled Osaka Metro Sennichimae line symbol.svg
 * JRW kinki-S.svg, the official West Japan Railway Company service symbol for the Kansai Airport Line.

Mathematics and logic

 * Integral symbol (∫), used in mathematics to denote integrals and antiderivatives
 * S combinator in combinatory logic
 * Sphere
 * s(n), the aliquot sum of an integer n

Physics and chemistry

 * Sulfur, symbol S, a chemical element
 * s, for second, the SI unit of time
 * S, the symbol for entropy
 * S, a non-SI unit used to designate molecule size named after the Svedberg sedimentation coefficient
 * S, a label that denotes one of two chiral center configurations in the R/S system
 * s, one of the Mandelstam variables, the square of the invariant mass
 * Siemens (unit), the SI derived unit of electric conductance
 * S-block of the periodic table, which includes alkali metals, alkaline earth metals, and hydrogen and helium
 * Spin (physics)
 * s, an abbreviation for solid

Biology and medicine

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

Computing

 * Samsung Galaxy S (2010 smartphone), the first flagship smartphone of the Samsung Galaxy S series
 * S (programming language), an environment for statistical computing and graphics
 * &lt;s&gt;, the opening tag for the HTML element 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
 * "S.", the nickname for Solomon Shereshevsky (1886-1958), a Russian journalist, mnemonist, and synesthete notable for his unusual memory abilities

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), 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’s weekly movie program SuperCine.

Comics

 * S, the protagonist of Heavy Liquid

Production models

 * Aion S, a Chinese electric compact executive sedan
 * Jaguar S-Type (1963), a British sports saloon
 * Jaguar S-Type (1999), a British executive saloon
 * Mercedes-Benz S-Class, a German full-size luxury car series
 * Mini Cooper S, a British hot hatch
 * Neta S, a Chinese electric sedan
 * Tesla Model S, an American electric executive sedan

Prototypes and concepts

 * Sony Vision-S, 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, a range of British performance vehicles

Other uses

 * S by Shakira, the first woman's fragrance by Colombian singer songwriter Shakira
 * Safety (gridiron football position)
 * South on a map or compass, one of the four cardinal directions
 * s, the SI symbol for second
 * Shilling (British coin)
 * Old Israeli Shekel, denominated as S
 * S postcode area, a postcode area including Sheffield, England
 * A party label for the Swedish Social Democratic Party
 * Strike (baseball)
 * S band, a band of radio which ranges from 2 to 4 GHz
 * Sierra, the military time zone code for UTC−06:00
 * Cool S, a graffiti sign