Source : Webster's Revised Unabridged Dictionary (1913)

Caesar \C[ae]"sar\, n. [L.]
   A Roman emperor, as being the successor of Augustus C[ae]sar.
   Hence, a kaiser, or emperor of Germany, or any emperor or
   powerful ruler. See {Kaiser}, {Kesar}.

         Malborough anticipated the day when he would be
         servilely flattered and courted by C[ae]sar on one side
         and by Louis the Great on the other.     --Macaulay.

Source : WordNet®

Caesar
     n 1: conqueror of Gaul and master of Italy (100-44 BC) [syn: {Julius
          Caesar}, {Gaius Julius Caesar}]
     2: United States comedian who pioneered comdey television shows
        (born 1922) [syn: {Sid Caesar}, {Sidney Caesar}]