1. A character at the beginning of a staff to determine the degree of elevation occupied by that staff in the system, and to point out the names of all the notes contained in the line of that clef.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• clet,
• claf,
• clif,
• clrea,
• cleo,
• cler,
• selef,
• lef,
• coef,
• cle,
• caler,
• clen,
• clifs,
• culer,
• clife,
• clep,
• cleff,
• chelf,
• elief,
• balef

• cleave,
• cleft,
• clop,
• cliff,
• clip,
• cluff,
• clv,
• club,
• clive,
• clap,
• cliffy,
• chef,
• clove.

The adjective form of the word "clef" is "clef-shaped".

The plural of the "clef" can be the "clefs".

The singular of the "clef" can be the "clef".