One who dictates; one who prescribes rules and maxims authoritatively for the direction of others. Locke.
One invested with absolute authority; especially, a magistrate created in times of exigence and distress, and invested with unlimited power. Invested with the authority of a dictator, nay, of a pope, over our language. Macaulay.
98,828 entries. Headwords are matched first, then definition text.