Caesar

American Heritage® Dictionary of the English Language, Fourth Edition

1. Caesar, Julius In full Gaius Julius Caesar. 100-44 B.C. Roman general, statesman, and historian who invaded Britain (55), crushed the army of his political enemy Pompey (48), pursued other enemies to Egypt, where he installed Cleopatra as queen (47), returned to Rome, and was given a mandate by the people to rule as dictator for life (45). On March 15 of the following year he was murdered by a group of republicans led by Cassius and Brutus, who feared he intended to establish a monarchy ruled by himself.
2. Caesar, Sidney Known as "Sid.” Born 1922. American comedian who, as star of his own weekly television program "Your Show of Shows” (1950-1954), pioneered the comedy sketch show.

Century Dictionary and Cyclopedia

1. n. A title, originally a surname of the Julian family at Rome, which, after being dignified in the person of the dictator C. Julius Cæsar, was assumed by successive Roman emperors, and finally came to be applied to the heir presumptive to the throne, in the same manner as Augustus was added as a title to the name of the reigning emperor. The title was perpetuated in the Kaiser of the Holy Roman Empire, a dignity first assumed by Charlemagne.
2. n. Hence A dictator; a conqueror; an emperor; an absolute monarch.
3. To imitate Cæsar; assume dictatorial or imperial power.
4. To make like Cæsar; raise to imperial power.
5. n. [lowercase] A name in the Bahamas of the small grunt or Tom Tate, Bathystoma rimator, a food-fish of the family Hæmulidæ.

Wiktionary

1. n. An ancient Roman family name, notably that of Gaius Iulius Caesar
2. n. figuratively The government; society; earthly powers.
3. n. A title of Roman emperors.
4. n. A Caesar salad.
5. n. Canada A cocktail made from clamato (clam-tomato juice), vodka, and often garnished with celery, a Bloody Caesar.

GNU Webster's 1913

1. n. A Roman emperor, as being the successor of Augustus Cæsar. Hence, a kaiser, or emperor of Germany, or any emperor or powerful ruler. See Kaiser, kesar.

WordNet 3.0

1. n. conqueror of Gaul and master of Italy (100-44 BC)
2. n. United States comedian who pioneered comedy television shows (born 1922)