An absolute ruler, especially one who is harsh and oppressive
One who imposes or favors absolute obedience to authority
Public opinion is a weak tyrant compared with our own private opinion.
With this force he proceeded to make himself master of the Acropolis and tyrant of Athens.
Gelo, son of Deinomenes, tyrant of Gela and Syracuse.
In 386 he excited the jealousy of the tyrant by secretly marrying his niece, and was sent into banishment.
In 1666 the rajah Palakkah, whose father and grandfather had been murdered by the family of Hassan, the tyrant of Sumatra, made common cause with the Dutch against that despot.