notion
Americannoun
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a general understanding; vague or imperfect conception or idea of something.
a notion of how something should be done.
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an opinion, view, or belief.
That's his notion, not mine.
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conception or idea.
his notion of democracy.
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a fanciful or foolish idea; whim.
She had a notion to swim in the winter.
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an ingenious article, device, or contrivance; knickknack.
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notions, small articles, as buttons, thread, ribbon, and other personal items, especially such items displayed together for sale, as in a department store.
noun
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a vague idea; impression
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an idea, concept, or opinion
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an inclination or whim
Usage
What are other ways to say notion? A notion is a vague or imperfect idea or a general understanding of something. How is it different from thought, conception, and idea? Learn more on Thesaurus.com.
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of notion
First recorded in 1560–70; from Latin nōtiōn- (stem of nōtiō ) “examination, idea,” equivalent to (g)nōt(us), past participle of (g)nōscere “to come to know” + -iōn- suffix forming nouns; see notify, -ion
Explanation
If you have a notion that you can swim across the ocean, you are probably wrong. A notion is an idea, often vague and sometimes fanciful. A notion is lighter than a theory and embraces a whimsy that a simple idea never could. You might have the notion that you can slow global warming by taking public transportation and reusing plastic bags. If you share a far-fetched idea with others, someone might respond with a "Where'd you get that notion?!" Notions can also refer to the buttons, thread, zippers, and pins necessary for sewing things. So if you have a notion to create your own Halloween costume, you better pick up some notions from the craft store.
Vocabulary lists containing notion
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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 notion that the nation-state is outdated, and could therefore be replaced with blockchain technology, is one of the reasons h e decided to run to become Liberland's prime minister.
From BBC • Jul. 10, 2026
App download patterns give some support to the notion that users support Anthropic’s position.
From The Wall Street Journal • Jul. 8, 2026
If the premise sounds familiar, it is because food television has long cherished the notion that the truth of a restaurant can only be accessed by subterfuge.
From Salon • Jul. 5, 2026
Classic cars and marching bands crept along parade routes, nodding to the nostalgia-tinged mid-century that has come to dominate the notion of “a better time.”
From Los Angeles Times • Jul. 4, 2026
Penelope could not help smiling at the notion.
From "The Unseen Guest" by Maryrose Wood
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.
