/ Dictionary / Index I Int. Rev.: Meaning and Definition of Find definitions for: Int. Rev. Pronunciation: [key] Internal Revenue. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. intrepid intricacy 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