at once
Idioms-
At the same time, as in We can't all fit into the boat at once . [First half of 1200s] Also see at one time , def. 1.
-
Immediately, as in Mother told the children to come inside at once . [First half of 1500s]
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Joseph Perkovich, arguing for Pitchford, tried to do two things at once.
From Slate • Apr. 10, 2026
Two things can be true at once: Your very real fear of flying, which can result in very real physical and psychological distress, and your husband’s window of time to take this trip.
From MarketWatch • Apr. 9, 2026
More swings, more practice and more rounds, but over time, not all at once.
From The Wall Street Journal • Apr. 6, 2026
Real radicalism is accepting the discomfort; it’s acknowledging that two or more things can coexist, and addressing all of those facets at once, even if the result isn’t perfect.
From Salon • Apr. 3, 2026
In all his life, he’d never seen a girl wear so many bright colors all at once.
From "The Way to Rio Luna" by Zoraida Cordova
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.