at once

once

O0075300 (wŭns)adv.1. One time only: once a day.2. At one time in the past; formerly.3. At any time; ever: Once known, his face is never forgotten.4. By one degree of relationship: my first cousin once removed.n. A single occurrence; one time: Once will have to do. You can go just this once.conj. As soon as; if ever; when: Once he goes, we can clean up.adj. Having been formerly; former: the once capital of the nation.Idioms: at once1. All at one time; simultaneously: Everything happened at once. The view of the skyline is at once awesome, grand, and disappointing.2. Immediately; instantly: Leave the room at once. once more/again1. Another time; again: Could you repeat yourself once more?2. As usual; in typical fashion: Once more, you've proven yourself inept at chess.

[Middle English ones, from on, one, from Old English ān; see oi-no- in Indo-European roots.]

Thesaurus

Adv.	1.	at once - without delay or hesitation; with no time intervening; "he answered immediately"; "found an answer straightaway"; "an official accused of dishonesty should be suspended forthwith"; "Come here now!"forthwith, immediately, instantly, like a shot, right away, straight off, straightaway, directly, now
	2.	at once - simultaneously; "he took three cookies at a time"at a time, at one time

Translations

立刻

once

(wans) adverb1. a single time. He did it once; If I could see her once again I would be happy.一次2. at a time in the past. I once wanted to be a dancer.曾经 conjunction when; as soon as. Once (it had been) unlocked, the door opened easily.一旦at once immediately. Go away at once!立刻(just) for once as an exception. Why can't you be nice to her for once? 仅这一次（作为例外） once and for all once and finally. Once and for all, I refuse!永远地once in a while occasionally. I meet him once in a while at the club.偶尔

at once

1. Immediately. I need you to call me at once—we have an urgent matter to discuss. The boss wants you to start working on this report at once.2. At the same time. Don't try to carry more than two boxes at once—they're heavy! I can't understand a word with all of you screaming at once.See also: once

at once

immediately; right now. We must leave at once! You must come here at once; it is an emergency.See also: once

at once

1. At the same time, as in We can't all fit into the boat at once. [First half of 1200s] Also see at one time, def. 1. 2. Immediately, as in Mother told the children to come inside at once. [First half of 1500s] See also: once

at ˈonce

1 immediately: I’m afraid there’s a problem. I must ask you to leave the building at once.
2 at the same time: Don’t all speak at once! ♢ I’m not superwoman, you know. I can’t do a hundred things at once.See also: once

at once

1. All at one time; simultaneously: Everything happened at once. The view of the skyline is at once awesome, grand, and disappointing.2. Immediately; instantly: Leave the room at once.See also: once

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Synonyms for at once

adv without delay or hesitation

Synonyms

adv simultaneously

Synonyms