Pronunciation: (sē'zur),[key] —n. 1. Ga•ius Pronunciation: (gā'us)[key]( or Ca•ius)Pronunciation: (kā'us)[key] Julius, c100–44 b.c., Roman general, statesman, and historian.
2. a title of the Roman emperors from Augustus to Hadrian, and later of the heirs presumptive.
3. any emperor.
4. a tyrant or dictator.
5. any temporal ruler, in contrast with God; the civil authority. Matt. 22:21.
6. a male given name: from a Roman family name.