once

word

/ˈwəns/
WUNS
/wˈɒns/
WONS

Definition

At one time in the past or on one occasion. It can also mean 'as soon as' or 'when' in some contexts.

Usage & Nuances

Commonly used in both past time expressions and conditional phrases like 'once you finish'. It is informal and formal. Do not confuse with 'one' or 'once in a while' which has a different meaning.

Example Sentences

Once you finish your homework, you can watch TV.

natural

She only met him once, but she remembers it clearly.

natural

Once upon a time, there was a brave knight.

natural

I saw him once in the park.

basic

You only need to press this button once.

basic

She told me this story once before.

basic