passepartout
Concise Oxford English Dictionary © 2008 Oxford University Press:
passepartout /ˌpaspɑːˈtuː, ˌpɑːs-/
▶noun
- 1 a simple picture frame consisting of pieces of glass and card taped together at the edges.
■ adhesive tape used in making such a frame.
- 2 archaic a master key.
– origin C17: from Fr., lit. ‘passes everywhere’.
'passepartout' also found in these Oxford entries:

