passe-par·tout /ˌpæspɚ/
passe-par·tout, Passe par·tout n.
1. That by which one can pass anywhere; a safe-conduct. [Obs.]
2. A master key; a latchkey. [wns=1]
3. A light picture frame or mat of cardboard, wood, or the like, usually put between the picture and the glass, and sometimes serving for several pictures.
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passe-partout
n 1: key that secures entrance everywhere [syn: passkey, master
key, master]
2: a mounting for a picture using gummed tape