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.

Definitions of notion
  1. noun
    a general inclusive concept
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    a traditional notion that is obstinately held although it is unreasonable
    type of:
    concept, conception, construct
    an abstract or general idea inferred or derived from specific instances
  2. noun
    a vague idea in which some confidence is placed
    synonyms: belief, feeling, impression, opinion
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    the impression that something is present
    an impression (especially one that is artificial or contrived)
    first blush
    at the first glimpse or impression
    hunch, intuition, suspicion
    an impression that something might be the case
    sound effect
    an effect that imitates a sound called for in the script of a play
    special effect
    an effect used to produce scenes that cannot be achieved by normal techniques (especially on film)
    bosom, heart
    the locus of feelings and intuitions
    type of:
    idea, thought
    the content of cognition; the main thing you are thinking about
  3. noun
    an odd or fanciful or capricious idea
    “the theatrical notion of disguise is associated with disaster in his stories”
    synonyms: whim, whimsey, whimsy
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    type of:
    idea, thought
    the content of cognition; the main thing you are thinking about
  4. noun
    (usually plural) small personal articles or clothing or sewing items
    “buttons and needles are notions
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    notion consisting of a narrow strip of fine material used for trimming
    riband, ribband
    a ribbon used as a decoration
    type of:
    one of a class of artifacts
Word Family

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