(metrology) Abbreviation of scruple. (unit of mass in the apothecaries' system) / (physics) Abbreviation of strange quark. / Alternative form of s.

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

The ordinal number nineteenth, derived from this letter of the English alphabet, called ess and written in the Latin script.

plural of s

plural of S

(symbols) Abbreviation of shilling, derived from the Latin solidus. / Abbreviation of season. / Abbreviation of south. / Abbreviation of substantive.

Abbreviation of southern. / Abbreviation of single.

Possessive marker, indicating that an object belongs to the noun or noun phrase bearing the marker. / In the absence of a specified object, used to indicate “the house/place/establishment of”.

(sometimes proscribed) Used to form the plurals of numerals, letters, some abbreviations and some nouns, usually because the omission of an apostrophe would make the meaning unclear or ambiguous.

(UK, dialect) Contraction of as.