simultaneously
Americanadverb
Other Word Forms
Derived Forms
Etymology
Origin of simultaneously
Explanation
Use the adverb simultaneously to describe actions that occur at the same time. You are reading this sentence and simultaneously learning a new word! Simultaneously doesn’t have to describe two different actions. It just means that things are happening at the same time. If a presidential debate is broadcast simultaneously on three television channels, “broadcast” is the only action but it’s happening in three places at once.
Vocabulary lists containing simultaneously
Vocabulary from the Introduction to "Reality is Broken" by Jane McGonigal
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The Devil's Arithmetic
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Drums, Girls, and Dangerous Pie
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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.
The findings were presented at the European Renal Association Congress in Glasgow, United Kingdom, and were simultaneously published in three leading medical journals: The Lancet, The New England Journal of Medicine, and JAMA.
From Science Daily • Jun. 8, 2026
You typically cannot receive both a full survivor benefit and a full retirement benefit simultaneously.
From MarketWatch • Jun. 8, 2026
For a period, Messi was expected to be Xavi, Iniesta and the goal scorer simultaneously.
From BBC • Jun. 7, 2026
Summit’s drug, a so-called bispecific antibody, aims to evolve that strategy by activating the immune system while simultaneously starving the tumor.
From The Wall Street Journal • Jun. 6, 2026
He looked at me for an instant with a serious expression, and then we both broke out simultaneously in wild laughter.
From "Just Mercy" by Bryan Stevenson
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.
