tooth - definition and synonyms

 
 
 
noun [countable] 

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/tuːθ/
singulartooth
pluralteeth
  1. 1
    one of the hard white objects inside your mouth that you use for biting and for chewing food

    front/back teeth

    brush/clean your teeth:

    It’s important to brush your teeth at least twice a day.

    take out/fill a tooth:

    Two teeth needed filling and one had to be taken out.

    cut teeth (=start to get them):

    The baby’s cutting his top teeth.

    bare/show your teeth:

    The dog growled and bared its teeth.

  2. 2
    one of a row of narrow pointed parts that form the edge of a tool or machine

    the teeth on a saw/gear/comb