The term 'Arab Rulers' can refer to two different titles: Emirs (5 letters) and Emeers (6 letters). An Emir is a title of nobility or rank given to a ruler or military COMMANDER in the Middle East and North Africa. It is derived from the Arabic word amir, meaning 'COMMANDER' or 'prince'. An Emeer is a variant spelling of Emir, and is also used to refer to a ruler or military COMMANDER in the Middle East and North Africa. Both titles are used to refer to rulers of Arab nations, and are often used interchangeably.