brainstorm
Americannoun
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brainstorms
plural
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a sudden impulse, idea, etc..
Her most recent brainstorm of teaching her dog to surf wasn’t met with much enthusiasm from the dog.
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Chiefly British Informal. a fit of mental confusion or excitement.
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a session of brainstorming.
adjective
verb (used without object)
verb (used with object)
noun
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a severe outburst of excitement, often as the result of a transitory disturbance of cerebral activity
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informal a sudden mental aberration
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informal another word for brainwave
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of brainstorm
First recorded in 1890–95; brain + storm; originally a manifestation of a serious psychiatric disorder
Explanation
As you would expect, the word brainstorm involves thought. A brainstorm can be an "Aha!" moment, while brainstorming is the process of trying to think of ideas. If you've ever needed to find a topic for a paper and have just started listing every idea coming to you, you know what it's like to brainstorm. People brainstorm when they need a new idea. You can also say you had a brainstorm when a good idea or solution occurs to you. Often, this kind of brainstorm happens when you're not even working on the problem. For example, a scientist might have a brainstorm for a new project in the shower.
Vocabulary lists containing brainstorm
Jim Burke's Academic Vocabulary List
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TEKS ELAR Academic Vocabulary List (5th-7th grades)
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Expository Writing, List 1
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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.
See Examples For:
For example, Mwedziwendira uses AI to brainstorm how to structure weekly priorities and create spreadsheets for her tasks.
From MarketWatch ● Sep. 30, 2026
They use it to brainstorm ideas, find literature, improve writing, refine arguments and test competing hypotheses.
From The Wall Street Journal ● Sep. 28, 2026
I find it helpful to brainstorm a week’s worth of meal ideas that call for rotisserie chicken in preparation for bringing a whole bird home.
From Salon ● Jun. 29, 2026
Spiegel says they brainstorm ideas for actors and themes based on what’s in the zeitgeist, tying the stories to specific moments in pop culture, then sprinkling in some evergreen stories throughout the year.
From Los Angeles Times ● Jun. 16, 2026
But Livingston had just had his brainstorm about removing the grids from the dees, and taking a respite at such a moment fit neither his personality nor Lawrence’s calendar.
From "Big Science" by Michael Hiltzik
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The characters check off every idea you want them to try in the small space of the car, plus other brilliant brainstorms.
From Los Angeles Times ● Aug. 19, 2026
Here are some of the brainstorms they wished for.
From The Wall Street Journal ● Jun. 29, 2026
Researchers are just beginning to test some of the ideas generated by these brainstorms.
From Scientific American ● Jul. 18, 2023
Text-to-image models like DALL-E work for visual brainstorms, as well, noted Curran.
From Washington Post ● Jan. 18, 2023
I picture Grandma weaving the threads together, humming and chuckling while she brainstorms the next mind-bending story she’s going to tell me about Ghana.
From "Kwame Crashes the Underworld" by Craig Kofi Farmer
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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.