/ Dictionary / Index A autarch: Meaning and Definition of Find definitions for: au•tarch Pronunciation: (ô'tärk), [key] — n. an absolute ruler; autocrat; tyrant. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. autacoid autarchy Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language