/ Dictionary / Index I iwis: Meaning and Definition of Find definitions for: i•wis Pronunciation: (i-wis'), [key] — adv. Obs. certainly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. IWC Iwo Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language