# all at once

> English word · Adverb · IPA /ˌɔːl ət ˈwʌn(t)s/

## Definitions
1. Unexpectedly; without warning; all of a sudden.
2. Used other than figuratively or idiomatically: All at the same time; all together.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/all-at-once