autocracy noun .Log In au·toc·ra·cy | \ ȯ-ˈtä-krə-sē \plural autocracies Essential Meaning of autocracy 1: a form of government in which a country is ruled by a person or group with total power 2: a country that is ruled by a person or group with total power Full Definition of autocracy 1: the authority or rule of an autocrat 2: government in which one person possesses unlimited power …