The Oxford Thesaurus An A-Z Dictionary of Synonyms - monarchyn.

1) kingdom, empire, domain, dominion, principality; state, nation, country: According to Gibbon, a hereditary monarchy presents the fairest scope for ridicule. 2) monocracy, autocracy, absolutism, royalism, monarchism, sovereignty, totalitarianism, authoritarianism; despotism, tyranny: Those who are discontented with monarchy call it tyranny.