simultaneously
Americanadverb
Other Word 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.
In quantum computing, for example, entanglement allows multiple qubits to be manipulated together rather than one at a time, making it possible to carry out multiple calculations simultaneously.
From Science Daily ● Sep. 20, 2026
The US military's Joint Taskforce-Micronesia told AFP the port will "expand Palau's capacity for commercial shipping and larger vessels while simultaneously enhancing the US military's logistical options for regional defence".
From Barron's ● Sep. 16, 2026
The live telecast will be broadcast on NBC and streamed simultaneously on Peacock.
From Los Angeles Times ● Sep. 11, 2026
The artist has opened his own Chanel pop-up store where plywood dresses simultaneously honor the brand while critiquing consumer culture.
From The Wall Street Journal ● Sep. 11, 2026
She looks simultaneously ashamed and full of tenderness.
From "What the Night Sings" by Vesper Stamper
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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.