/ Dictionary / Index I inphase: Meaning and Definition of Find definitions for: in•phase Pronunciation: (in'fāz"), [key] — adj. Elect. having the same phase. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. in petto* inpour Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language