(computing) Atari ST. / Initialism of Star Trek. / (linguistics, Egyptology) Initialism of Standard Theory.

Someone who acts as a game master (GM) in a tabletop role-playing game, especially any of the games produced by White Wolf.

Alternative letter-case form of St., abbreviation of street.

Expressing a sudden desire for silence.

Abbreviation of street. (Usually as “st.” Also as “st”. Sometimes capitalized.) / Abbreviation of Saint. (Always capitalized.) / Abbreviation of state.

Abbreviation of street (in names of specific streets, not as a common noun) / Abbreviation of Saint (always capitalized). / (US) Abbreviation of state (pertaining to U.S. states)

Excrescent suffix (adding sound but largely not changing the meaning).

Marks ordinals written in digits when the final term of the spelled number is "first"

(archaic) Verb suffix for the second-person singular; Alternative form of -est

Abbreviation of Saint.