coigne

Definitions of coigne
  1. noun
    the keystone of an arch
    synonyms: coign, quoin
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    type of:
    headstone, key, keystone
    the central building block at the top of an arch or vault
  2. noun
    expandable metal or wooden wedge used by printers to lock up a form within a chase
    synonyms: coign, quoin
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    type of:
    wedge
    something solid that is usable as an inclined plane (shaped like a V) that can be pushed between two things to separate them
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