Dictator
Pronunciation : Dic*ta"tor
Part of Speech : n.
Etymology : [L.]
Definition : 1. One who dictates; one who prescribes rules and maxims authoritatively for the direction of others. Locke.
2. 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.
Source : Webster's Unabridged Dictionary, 1913