but once meaning

At once also means at the same time: . You can go just this once. What does at once expression mean? See more. How to use once in a sentence. once (wŭns) adv. 3. Once definition is - one time and no more. at once definition: 1. immediately: 2. at once phrase. Once definition, at one time in the past; formerly: I was a farmer once; a once powerful nation. 4. By one degree of relationship: my first cousin once removed. conj. What does at once expression mean? once meaning, definition, what is once: on one occasion only: Learn more. Learn more. n. A single occurrence; one time: Once will have to do. 2. At any time; ever: Once known, his face is never forgotten.

once definition: 1. one single time: 2. at the same time: 3. used when something happens that does not usually…. One time only: once a day. Learn more. Definition of at once in the Idioms Dictionary. At one time in the past; formerly. Definitions by the largest Idiom Dictionary. Definitions by the largest Idiom Dictionary. 1.