Synonyms for once

Adjective

1. erstwhile(prenominal), former(prenominal), once(prenominal), onetime(prenominal), quondam(prenominal), sometime(prenominal), past (vs. present) (vs. future)

usage: belonging to some prior time; "erstwhile friend"; "our former glory"; "the once capital of the state"; "her quondam lover"

Adverb

1. once, one time, in one case

usage: on one occasion; "once I ran into her"

2. once, when

usage: as soon as; "once we are home, we can rest"

3. once, formerly, at one time, erstwhile, erst

usage: at a previous time; "once he loved her"; "her erstwhile writing"