inch - definition and synonyms

noun [countable] 

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  1. a unit for measuring length. An inch is equal to 2.54 centimetres. There are 12 inches in one foot

    The car stopped only about three inches from the edge of the cliff.

    an inch high/long/wide:

    The insect was about an inch long.

    1. a.
      a very small distance or amount

      The gun was inches away from his face.

    2. b.
      an amount of rain, snow, soil etc that would cover a surface with a layer that is one inch deep

      The city was cut off for hours after 10 inches of snow fell overnight.