Idioms

knock on wood
to knock on something made of wood to keep from having bad luck
I do not think that I will lose my job - knock on wood.

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  • knock one's head against the wall
  • knock oneself out (doing something)
  • knock the props out from under (someone)
  • know (someone or something) by sight
  • know (someone or something) like a book
  • know (someone or something) like an open book
  • know (someone or something) like the back of one's hand
  • know (something) backwards and forwards
  • know (something) by heart
  • know (something) from memory
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  • give (someone) a black eye
  • back to square one
  • kick the bucket
  • piece of the action
  • freeload
  • under construction
  • think better of (doing something)
  • switched on
  • for all (something)
  • take (something) the wrong way


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