S (disambiguation)

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S is the nineteenth letter of the English alphabet.

S may also refer to:

History[edit]

Language and linguistics[edit]

Transportation[edit]

Mathematics and logic[edit]

Physics and chemistry[edit]

  • 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[edit]

  • 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[edit]

People[edit]

Arts and entertainment[edit]

Books[edit]

Music[edit]

  • 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

Television[edit]

Comics[edit]

Automobiles[edit]

Production models[edit]

Prototypes and concepts[edit]

Series and trims[edit]

Other uses[edit]

See also[edit]