/ Dictionary / Index E expanse: Meaning and Definition of Find definitions for: ex•panse Pronunciation: (ik-spans'), [key] — n. an uninterrupted space or area; a wide extent of anything: an expanse of water. something that is spread out, esp. over a relatively large area: that great expanse, the sky. expansion; extension: the wide expanse of scientific knowledge. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: expanse (Thesaurus) expanding universe expansible Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language