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.
Simultaneously, it invested heavily in renewable and nuclear energy.
From Barron's • May 4, 2026
Simultaneously, packaged food companies like Nestle are grappling with a growing cohort of health-conscious consumers who have lost their appetite for ultraprocessed foods.
From The Wall Street Journal • Apr. 23, 2026
Simultaneously this triggered a major unwind in what investors refer to as the basis trade in bitcoin/Strategy, whereby funds like Jane Street were rumored to be long the cryptocurrency but short Michael Saylor’s company.
From MarketWatch • Apr. 22, 2026
Simultaneously, Platner has emerged as a routine talking head on the broader liberal podcast circuit.
From Slate • Apr. 13, 2026
Simultaneously, he pulled the oar toward his chest against the resistance of the water, throwing all the strength of his combined arm, back, and leg muscles into the stroke.
From "The Boys in the Boat: Nine Americans and Their Epic Quest for Gold at the 1936 Berlin Olympics" by Daniel James Brown
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.
