Definitions of passe-partout
  1. noun
    key that secures entrance everywhere
    synonyms: master, master key, passkey
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    skeleton key
    a passkey with much of the bit filed away so that it can open different locks
    type of:
    metal device shaped in such a way that when it is inserted into the appropriate lock the lock's mechanism can be rotated
  2. noun
    a mounting for a picture using gummed tape
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    type of:
    framework used for support or display
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