Open English Wordnet
Nouns
(n)dictatorship, absolutism, authoritarianism, Caesarism, despotism, monocracy, one-man rule, shogunate, Stalinism, totalitarianism, tyrannya form of government in which the ruler is an absolute dictator (not restricted by a constitution or laws or opposition etc.)
(n)absolutism, totalitarianism, totalisman ideological belief in the complete and unrestricted power of government.