Passe" par`tout" (?), n. [F., from passer to pass + partout everywhere.]
1.
That by which one can pass anywhere; a safe-conduct.
[Obs.]
Dryden.
2.
A master key; a latchkey.
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.
© Webster 1913.