Shereef \Sher"eef\, Sherif \Sher"if\, n. [Ar. sher[=i]f noble, holy, n., a prince.]

A member of an Arab princely family descended from Mohammed through his son-in-law Ali and daughter Fatima. The Grand Shereef is the governor of Mecca.

Source: Webster's Revised Unabridged Dictionary (1913)