/ Dictionary / Index T Thyone: Meaning and Definition of Find definitions for: Thy•o•ne Pronunciation: (thī'ō nē", thī'u-), [key] — n. Class. Myth. Semele, as named by her son Dionysus when he took her from the underworld to Olympus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. thymy thyratron Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language