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Synonyms

notion

American  
[noh-shuhn] / ˈnoʊ ʃən /

noun

  • notions
    plural
  1. a general understanding; vague or imperfect conception or idea of something.

    a notion of how something should be done.

  2. an opinion, view, or belief.

    That's his notion, not mine.

  3. conception or idea.

    his notion of democracy.

  4. a fanciful or foolish idea; whim.

    She had a notion to swim in the winter.

  5. an ingenious article, device, or contrivance; knickknack.

  6. notions, small articles, as buttons, thread, ribbon, and other personal items, especially such items displayed together for sale, as in a department store.


notion British  
/ ˈnəʊʃən /

noun

  1. a vague idea; impression

  2. an idea, concept, or opinion

  3. an inclination or whim

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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.

Keep Reading on Vocabulary.com

Vocabulary lists containing notion

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:

But for some younger adults, that notion is being turned on its head.

From MarketWatch ● Oct. 22, 2026

Still, he has repeatedly disputed the notion that he is taking the race for granted.

From Los Angeles Times ● Oct. 19, 2026

Most of his top aides would probably advise against the notion.

From Slate ● Oct. 19, 2026

That’s why stories about AI bots being put into virtual torture chambers aren’t just silly, but foregrounds the false notion that AI is capable of suffering.

From Salon ● Oct. 12, 2026

Not that I humbled myself by a slavish notion of inferiority: on the contrary, I just said—

From "Jane Eyre" by Charlotte Brontë

But that didn’t prevent these notions from taking root on social media or networks like Hulu.

From Salon ● Sep. 12, 2026

From DJs influencing the L.A. scene to artists subverting notions that this city lacks creative innovation, Kiko’s internal ecosystem has been one deeply representative of the brand as a whole.

From Los Angeles Times ● Sep. 11, 2026

Huang pushed back on notions that AI posed a threat to jobs, one of the fears that has fueled public opposition to the technology.

From Barron's ● Sep. 2, 2026

Edmonds and Frahm ask: "What and who determined a king's 'canonicity'? How did this intersect with Assyrian cultural memory or notions of kingship? Was the AKL's function at all practical, or solely ceremonial?"

From Science Daily ● Aug. 26, 2026

I think we are all about to reinvent our notions of hell.

From "The Light in Hidden Places" by Sharon Cameron

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