/ Dictionary / Index D Donus: Meaning and Definition of Find definitions for: Do•nus Pronunciation: (dō'nus), [key] — n. died a.d. 678, pope 676–678. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. don't-know donut Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language