tsar

1. (historical) An emperor of Russia (1547 to 1917) and of some South Slavic states.Examples: "[W]hy, in the name of common sense, should the English call the Czar (tsar) of Russia razc?"; "I vuz never beink too krazy about any of dose tsari."; ">There IS a difference between the Russians as a group of people and Soviet communism! Ha ha ha! Know any other good ones? First their^([sic]) were the plain old tsari, then the red tsari (Stalin, etc) and know Putin is the 'new look' tsar. But the same beastly imperialist bullying goes on."historical

2. (figuratively) A person with great power; an autocrat.Examples: "Chin Chien-shih, an old poor peasant of Korean nationality, said: "The wolfish ambition of the new tsars is exactly the same as that of the old tsars. The Soviet revisionist renegade clique is struggling desperately in the hope of saving itself from doom, but this will only bring on its destruction more quickly.""figuratively