A leader or elder in a Muslim community or organization, often holding a position of authority or respect. The sheikh was consulted for his wisdom and guidance on community matters.
A title of respect for a learned or religious man in Islamic culture. The sheikh delivered a sermon at the mosque that inspired many attendees.
A title used for the ruler of a tribe or a small territory in Arab countries. The sheikh of the tribe negotiated peace with neighboring groups.
Informal: a very wealthy Arab man, especially one whose fortune derives from oil. European football clubs attracted investment from Gulf oil sheikhs.