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knock - definition and synonyms

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noun [countable]     knock pronunciation in British English
Word Forms
  1. 1
    Sound effect the sound of someone knocking on a door
    knock on/at:

    There was a loud knock at the door.

  2. 2
    an injury or damage caused by being knocked

    a nasty knock on the head

    1. a.
      an instance of knocking someone or something

      The watch is built to withstand the occasional knock.

  3. 3
    something bad or unpleasant that happens to someone
    hard knocks:

    Life is full of hard knocks.



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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