s

S1
/ɛs/phoneme/s/phoneme/ʃ/phoneme/z/

character

The nineteenth letter of the English alphabet, called ess and written in the Latin script.

Similar
CCsubsulfursulphuratomic number 16southdue southsouthward
Very commonScrabble 1

Meanings

s1

character

uppercase S · plural ss · plural s's

  1. letterlowercaseThe nineteenth letter of the English alphabet, called ess and written in the Latin script.
numeral

uppercase S · plural ss · plural s's

  1. lowercaseThe nineteenth numeral symbol of the English alphabet, called ess and written in the Latin script.

s2

noun
  1. abbreviationmetrologyAbbreviation of scruple, a unit of mass in the apothecaries' system.
  2. abbreviationnatural sciencesAbbreviation of strange quark.
  3. alternativeAlternative form of s..

S3

character

lowercase s · plural Ss · plural S's

  1. letteruppercaseThe nineteenth letter of the English alphabet, called ess and written in the Latin script.
numeral

lowercase s · plural Ss · plural S's

  1. uppercaseThe nineteenth numeral symbol of the English alphabet, called ess and written in the Latin script.

S4

nounS (countable and uncountable, plural Ss)

plural Ss

  1. abbreviationcountableinitialismuncountableInitialism of south.
  2. abbreviationcountableinitialismuncountableInitialism of season (group of episodes of a series).

    The pilot episode is S01E01.

    1 more example

    I watched S01 through 03. I have yet to watch the S04.

  3. abbreviationcountableinitialismuncountableusuallybusinessInitialism of small (the manufactured size or an item of that size).
  4. abbreviationcountableinitialismuncountableentertainmentInitialism of soprano.
  5. abbreviationcountableinitialismuncountablebroadcastingInitialism of subtitles.

    Synonyms: CC, sub

  6. abbreviationcountableinitialismuncountableAmerican Library AssociationInitialism of sextodecimo (book size, 15-17.5 cm in height).
  7. abbreviationcountabledatedinitialismuncountablelifestyleInitialism of sadist.
adjectiveS (not comparable)
  1. abbreviationinitialismnot comparableusuallybusinessInitialism of small (of the manufactured size).
  2. abbreviationinitialismnot comparableeducationInitialism of satisfactory.

S5

proper noun
  1. mathematicsAn axiomatic set theory, developed by logician George Boolos, in which several of the axioms of ZF are derivable as theorems.

    S has no axiom of extensionality and identity is absent from the other S axioms.

Synonyms & antonyms

More synonyms by meaning

nounan abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions)

Similar
sulfursulphuratomic number 16

nounthe cardinal compass point that is at 180 degrees

Similar
Broader
cardinal compass point

nouna unit of conductance equal to the reciprocal of an ohm

Similar
mhosiemensreciprocal ohm
Broader
conductance unit

noun(thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work

noun1/60 of a minute; the basic unit of time adopted under the Systeme International d'Unites

Similar

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

S · noun, adjective

Abbreviation.

Full word history & related roots →

S · proper noun

From the first letter of set and of stage, two fundamental concepts of the theory.

Full word history & related roots →

Translations

German S
  • Ssouth
Swedish S, S
  • Ssouth
  • Sabbreviation of season

Rhymes & wordplay

Rhymes with s

All rhymes →
Cite this entry
APA

s. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/s

MLA

“s.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/s. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “s,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/s.

Source: s on Wiktionary, CC BY-SA 4.0.