| 1. | the whole of (used in referring to quantity, extent, or duration): all the cake; all the way; all year. |
| 2. | the whole number of (used in referring to individuals or particulars, taken collectively): all students. |
| 3. | the greatest possible (used in referring to quality or degree): with all due respect; with all speed. |
| 4. | every: all kinds; all sorts. |
| 5. | any; any whatever: beyond all doubt. |
| 6. | nothing but; only: The coat is all wool. |
| 7. | dominated by or as if by the conspicuous possession or use of a particular feature: The colt was all legs. They were all ears, listening attentively to everything she said. |
| 8. | Chiefly Pennsylvania German. all gone; consumed; finished: The pie is all. |
| 9. | the whole quantity or amount: He ate all of the peanuts. All are gone. |
| 10. | the whole number; every one: all of us. |
| 11. | everything: Is that all you want to say? All is lost. |
| 12. | one's whole interest, energy, or property: to give one's all; to lose one's all. |
| 13. | (often initial capital letter ) the entire universe. |
| 14. | wholly; entirely; completely: all alone. |
| 15. | only; exclusively: He spent his income all on pleasure. |
| 16. | each; apiece: The score was one all. |
| 17. | Archaic. even; just. |
| 18. | above all, before everything else; chiefly: Above all, the little girl wanted a piano. |
| 19. | after all, in spite of the circumstances; notwithstanding: He came in time after all. |
| 20. | all at once. once (def. 14). |
| 21. | all but, almost; very nearly: These batteries are all but dead. |
| 22. | all in, Northern and Western U.S. very tired; exhausted: We were all in at the end of the day. |
| 23. | all in all,
|
| 24. | all in hand, Printing, Journalism. (of the copy for typesetting a particular article, book, issue, etc.) in the possession of the compositor. |
| 25. | all in the wind, Nautical. too close to the wind. |
| 26. | all out, with all available means or effort: We went all out to win the war. |
| 27. | all over,
|
| 28. | all standing, Nautical.
|
| 29. | all that, remarkably; entirely; decidedly (used in negative constructions): It's not all that different from your other house. |
| 30. | all the better, more advantageous; so much the better: If the sun shines it will be all the better for our trip. |
| 31. | all there, Informal. mentally competent; not insane or feeble-minded: Some of his farfetched ideas made us suspect that he wasn't all there. |
| 32. | all the same. same (def. 9). |
| 33. | all told. told (def. 2). |
| 34. | all up,
|
| 35. | and all, together with every other associated or connected attribute, object, or circumstance: What with the snow and all, we may be a little late. |
| 36. | at all,
|
| 37. | for all (that), in spite of; notwithstanding: For all that, it was a good year. |
| 38. | in all, all included; all together: a hundred guests in all. |
| 39. | once and for all, for the last time; finally: The case was settled once and for all when the appeal was denied. |

| 1. | at one time in the past; formerly: I was a farmer once; a once powerful nation. |
| 2. | a single time: We ate there just once. We go to a movie once a week. |
| 3. | even a single time; at any time; ever: If the facts once become known, it will be just too bad. |
| 4. | by a single step, degree, or grade: a cousin once removed. |
| 5. | former; having at one time been: the once and future king. |
| 6. | if or when at any time; if ever. |
| 7. | whenever; as soon as: Once you're finished, you can leave. |
| 8. | a single occasion; one time only: Once is enough. |
| 9. | all at once,
|
| 10. | at once,
|
| 11. | once and again, repeatedly: He has been told once and again not to slam the door. |
| 12. | once and for all, decisively; finally: Let's settle this problem once and for all. Also, once for all. |
| 13. | once in a while, at intervals; occasionally: She stops in to see us once in a while. |
| 14. | once or twice, a very few times; infrequently: I've seen her in the elevator once or twice. |
| 15. | once upon a time, at some unspecified past time, esp. a long time ago: Once upon a time, in a faraway land, there lived a prince and princess. |
all at once
All at the same time, as in We can't get inside all at once, so please wait your turn. [Late 1300s]
Suddenly, unexpectedly, as in All at once the sky darkened. For a synonym, see all of a sudden.