/ Dictionary / Index O Omi: Meaning and Definition of Find definitions for: O•mi Pronunciation: (ō'mē Japn. ô'mē), [key] — n. Biwa. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. omertà* omicron 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