/ Dictionary / Index I Isai: Meaning and Definition of Find definitions for: I•sai Pronunciation: (ī'zī), [key] — n. Douay Bible. Jesse. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. isagogics Isaiah Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language