/ Dictionary / Index T tyranny: Meaning and Definition of Find definitions for: tyr•an•ny Pronunciation: (tir'u-nē), [key] — pl. -nies. arbitrary or unrestrained exercise of power; despotic abuse of authority. the government or rule of a tyrant or absolute ruler. a state ruled by a tyrant or absolute ruler. oppressive or unjustly severe government on the part of any ruler. undue severity or harshness. a tyrannical act or proceeding. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tyranny (Thesaurus) tyrannulet tyrant Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language