ALL meanings of at once
at once
A a - phrase at once If you do something at once, you do it immediately. 3
- noun at once at the same time 3
- adverb at once at one time in the past; formerly: I was a farmer once; a once powerful nation. 1
- adverb at once a single time: We ate there just once. We go to a movie once a week. 1
- adverb at once even a single time; at any time; ever: If the facts once become known, it will be just too bad. 1
- adverb at once by a single step, degree, or grade: a cousin once removed. 1
- adjective at once former; having at one time been: the once and future king. 1
- noun at once a single occasion; one time only: Once is enough. 1
- idioms at once all at once, simultaneously: The children were running, screaming, and throwing things all at once. suddenly: All at once the rain came down. 1
- idioms at once at once, at the same time; simultaneously: Don't all speak at once. immediately; promptly: Tell him to come at once! 1
- idioms at once once and again, repeatedly: He has been told once and again not to slam the door. 1
- idioms at once once and for all, decisively; finally: Let's settle this problem once and for all. Also, once for all. 1
- idioms at once once in a while, at intervals; occasionally: She stops in to see us once in a while. 1
- idioms at once once or twice, a very few times; infrequently: I've seen her in the elevator once or twice. 1
- idioms at once once upon a time, at some unspecified past time, especially a long time ago: Once upon a time, in a faraway land, there lived a prince and princess. 1
- adverb at once immediately 1
- adverb at once simultaneously 1
- adverb at once (Obsolete (No longer in use)) In one group; together. 0
- adverb at once (Idiomatic) At the same time; simultaneously. 0
- adverb at once (Idiomatic) Immediately; now; right away. 0