Ù Ø Ø ; emira ; ( Persian and Urdu : Ø Ù Û Ø ) `` commander '' or `` general '' , also `` prince '' ; also transliterated as amir , aamir or ameer ) is a high title of nobility or office . Ù Ø Ø ; emira ; ' ) , ( `` commander '' or `` general '' , also `` prince '' ; also transliterated as amir , aamir or ameer ) is a high title of nobility or office , used throughout the Muslim world .