/ Dictionary / Index A Agathocles: Meaning and Definition of Find definitions for: A•gath•o•cles Pronunciation: (u-gath'u-klēz"), [key] — n. 361–289 b.c., tyrant of Syracuse 317–289. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Agatho Agathon Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language