/ Dictionary / Index I interact: Meaning and Definition of Find definitions for: in•ter•act Pronunciation: (in"tur-akt'), [key] — v.i. to act one upon another. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: interact (Thesaurus) interacinous interactant 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