/ Dictionary / Index C coextend: Meaning and Definition of Find definitions for: co•ex•tend Pronunciation: (kō"ik-stend'), [key] — v.t., v.i. to extend equally through the same space or duration. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. coexistence coextensive Related Content Daily Word Quiz: fresco Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language