cutting edge

Definitions of cutting edge
  1. noun
    the sharp cutting side of the blade of a knife
    synonyms: knife edge
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    type of:
    edge
    a sharp side formed by the intersection of two surfaces of an object
  2. noun
    the position of greatest importance or advancement; the leading position in any movement or field
    synonyms: forefront, vanguard
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    type of:
    perspective, position, view
    a way of regarding situations or topics etc.
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