once
US /wʌns/
UK /wʌns/

1.
한 번
on one occasion or for one time only
:
•
I only met him once.
그를 한 번만 만났어.
•
You only live once.
인생은 한 번뿐이야.
2.
한때, 옛날에
in the past; formerly
:
•
He was once a famous actor.
그는 한때 유명한 배우였어.
•
Once upon a time, there was a princess.
옛날 옛적에 공주가 살았어.
1.
~하자마자, ~하면
as soon as; when
:
•
Once you finish your homework, you can play.
숙제를 끝내면 놀 수 있어.
•
Once he arrived, the meeting began.
그가 도착하자마자 회의가 시작되었어.