at once

phrase

1

: at the same time : simultaneously

2

: immediately

3

: both entry 2

at once funny and sad

Examples of at once in a Sentence

Recent Examples on the Web

Being caring doesn’t require being available in every direction at once. — Tarot.com, Sun Sentinel, 12 Sep. 2026

Some put the chance of AI destroying everyone, everywhere, all at once at around 50%. — Los Angeles Times, 11 Sep. 2026

La Gradiva’s seamless verisimilitude is a testament both to Atlan’s authority behind the camera and to the extensive research that went into the script — a portrait of adolescence ringing at once bracingly of the moment and achingly timeless. — David Canfield, HollywoodReporter, 11 Sep. 2026

And sometimes, a new coiling direction dominates seemingly everywhere across the oceans all at once in the fossil record. — Quanta Magazine, 11 Sep. 2026

Word History

First Known Use

13th century, in the meaning defined at sense 1

Rhymes for at once

• bunce
• dunce