Once | Mean of once in English Dictionary

/ˈwʌns/

• one time only
1. I will repeat the question once.
2. We try to get together (at least) once every month.
3. The play was performed only once.
4. He had ridden a horse only once (before).
5. We go to the movies once or twice a month. [=we go to the movies a few times a month]
6. I've only seen her once or twice. [=I have only seen her a few times]
• at any one time
1. She didn't once thank me.
2. He didn't look at me once.
• at some time in the past
1. It was once done that way.
2. A river once flowed through this canyon.
3. It was once a booming mining town.
4. Their music was once very popular.
5. a once-successful actor
6. a once-popular restaurant

• for another time
1. Let me explain the problem once again.
2. Once again, you've ignored my instructions.
3. Could I hear the question once more?
• now and for the last time
1. Let's settle this problem once and for all.
2. Winning its fourth straight championship game, the team proved once and for all that they are the best.
3. I'm asking you once and for all.
4. Please, once and for all, stop worrying.
• sometimes but not often
1. We spend most of our time at home and go out once in a while.
2. Every once in a while, we have wine with dinner.
• Noun
• one single time
1. I have tried Indian food more than once.
2. Please be on time just this once.
3. For once you seem to know what I'm talking about.
• at the same time
1. two people talking at once
2. The book is at once [=both] funny and sad.
3. She had several projects going on all at once.
• right away
1. We need to leave at once.
2. You can call the office and get advice at once.
• at the moment when
1. Things got better once he found a job. = Once he found a job, things got better.
2. Once she spoke, I recognized her.