S (disambiguation)

Look up ѕ, Տ, Ꮪ, or Appendix:Variations of "s" in Wiktionary, the free dictionary.

S is the nineteenth letter of the English alphabet.

S may also refer to:

History

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"
s, the International Phonetic Alphabet symbol for a voiceless alveolar sibilant sound
S, the subject of an intransitive verb
Ѕ, the Cyrillic letter Dze

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
Sennichimae Line, a subway service operated by the Osaka Metro, labeled
, the official West Japan Railway Company service symbol for the Kansai Airport Line.

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

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

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

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
<s>, the opening tag for the HTML element denoting information that is "no longer accurate or no longer relevant", usually rendered as ~~strike-through text~~

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

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

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