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.
Jack McGrail and Aiyana Da’Briel, staff leaders for the SoLa Live Accelerator program behind the event, seemed to be everywhere at once, passing out wristbands and scribbling on clipboards.
From Los Angeles Times ● Jul. 29, 2026
Capanna said a universal travel adaptor that lets multiple pins extend at once is "the most immediate sign it is dangerous", posing real risks of electric shock or electrocution.
From BBC ● Jul. 28, 2026
It comes across as at once a little artificial and sincerely felt.
From Los Angeles Times ● Jul. 22, 2026
In the space of a single week, midfielder Enzo Fernandez managed the exceptional feat of all at once alienating millions of people from around the globe, including his own nation.
From The Wall Street Journal ● Jul. 21, 2026
The walking was at once more difficult here, the going more arduous, the snow deeper, but at least we weren’t dragging along with hundreds of others, being endlessly held up.
From "An Elephant in the Garden" by Michael Morpurgo
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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.