Once
Synonyms One time, A single time, Previously, On one occasion, Sometime, In former times, Long ago, In bygone days, Back in the day, At a time, Before now, Once upon a time, At an earlier time, In previous years, In earlier days, At one time, Formerly, In the past, Back then, At one point, Earlier, At some point, In days gone by, Former, Long since, Historically, In history, Erstwhile, A while ago, and In the old days.
Example Sentences
Once you're ready, let's begin.
She smiled once she arrived.
Once the rain stops, we'll leave.
Call me once you finish everything.