/ Dictionary / Index O octarchy: Meaning and Definition of Find definitions for: oc•tar•chy Pronunciation: (ok'tär-kē), [key] — pl. -chies. a government by eight persons. a group of eight states or kingdoms. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. octant octateuch Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language