once

adverb
A1
1
A1
on one occasion only; one time
یک‌بار, یک‌مرتبه, یک‌دفعه, فقط یک بار, تنها یک دفعه
2
A1
at some time in the past
زمانی, قبلاً
I once met your mother.
He once lived in Zambia.
This book was famous once, but nobody reads it today.
She remembers once travelling with her father to Kilkenny.
I famously once said that I was a fighter and not a quitter.
He once told an interviewer that his biggest regret was missing his father's funeral.
It was once thought to be the best hotel in Europe.
3
used in negative sentences and questions, and after if to mean ‘ever’ or ‘at all’
هیچگاه, هرگز, ابداً
He never once offered to help.
If she once decides to do something, you won't change her mind.
4
used with a preposition or another adverb to mean ‘as soon as somebody/something is/was’
به محض اینکه, همین که, به مجرد اینکه, لحظه‌ای که, در همان لحظه که
Once inside the gate, Sam hurried up the path.
conjunction
B1
1
as soon as; when
به محض اینکه, وقتی که, به مجرد این که, هنگامی که, زمانی که, به محض این که, وقتی, همین که