/ Dictionary / Index A Agatho: Meaning and Definition of Find definitions for: Ag•a•tho Pronunciation: (ag'u-thō"), [key] died a.d. 681, Sicilian ecclesiastic: pope 678–681. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Agatha Agathocles Related Content Daily Word Quiz: languid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language