passe-partout
noun
University
1
That by which one can pass anywhere; a safe-conduct.
2
A master key.
3
A light picture frame or mat of cardboard, wood, etc., usually put between the picture and the glass, and sometimes serving for several pictures.
That by which one can pass anywhere; a safe-conduct.
A master key.
A light picture frame or mat of cardboard, wood, etc., usually put between the picture and the glass, and sometimes serving for several pictures.