/ Dictionary / Index I insphere: Meaning and Definition of Find definitions for: in•sphere Pronunciation: (in-sfēr'), [key] — -sphered, -spher•ing. ensphere. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Inspector-General, The* inspirable Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language