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nut - definition and synonyms

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noun     nut pronunciation in British English
Word Forms
  1. 1
    [countable] a dry fruit that grows inside a hard shell on some types of tree and bush. Many kinds of nut can be eaten

    Can you crack some nuts for me (=break open the shells)?

    Synonyms and related words
  2. 2
    [countable] a small metal object with a hole in the middle that you screw a bolt through in order to fasten things together
  3. 3
    [countable] mainly spoken an insulting word for someone who you think is crazy
    Synonyms and related words
  4. 4
    [countable] informal someone who is extremely enthusiastic about a particular activity, sport, or subject

    a football nut

  5. 5
    [countable] informal your head, or your brain
  6. 6


    [plural] impolite a man’s testicles


a lifestyle focussing on simple pleasures such as comfort and cosiness in the home, and spending time with friends and family

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a form of location that involves the underwater detonation of a bomb which causes sound waves that are picked up by ships

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