Origin of clefFrench from Classical Latin clavis, a key: see close
Origin of clefFrench key from Old French from Latin clāvis
- A symbol found on a musical staff that indicates the pitches indicated by the lines on the staff
From Old French, from Latin clāvis (“a key”).
clef - Computer Definition
(Commercial Licensed Evaluation Facility) A facility licensed by the U.K. government that performs formal security evaluations of information technology.