An emperor (through Old French empereor from Latin imperator) is a (male) monarch, usually the sovereign ruler of an empire or another type of imperial realm. Empress, the female equivalent, may indicate an emperor's wife (empress consort), mother (empress dowager), or a woman who rules in her own right (empress regnant). Emperors are generally recognized to be of a higher honor and rank than kings.The Emperor of Japan is the only currently reigning monarch whose title is translated into English as "Emperor".