Once - Definition
once
adv 1: on one occasion; "once I ran into her" [syn: once, one
time, in one case]
2: as soon as; "once we are home, we can rest"
3: at a previous time; "at one time he loved her"; "her
erstwhile writing"; "she was a dancer once"; [syn: once,
formerly, at one time, erstwhile, erst]