Meaning of the word once in English

What does once mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

once

US /wʌns/
UK /wʌns/
"once" picture

Adverb

1.

on one occasion or for one time only

Example:
I only met him once.
You only live once.
2.

in the past; formerly

Example:
He was once a famous actor.
Once upon a time, there was a princess.

Conjunction

1.

as soon as; when

Example:
Once you finish your homework, you can play.
Once he arrived, the meeting began.
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