Synonyms of adv once

3 senses of once

Sense 1
once, one time, in one case -- (on one occasion; "once I ran into her")

Sense 2
once -- (as soon as; "once we are home, we can rest")

Sense 3
once, formerly, at one time, erstwhile, erst -- (at a previous time; "at one time he loved her"; "her erstwhile writing"; "she was a dancer once";)

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