/ Dictionary / Index A Antonia: Meaning and Definition of Find definitions for: An•to•ni•a Pronunciation: (an-tō'nē-u, -tōn'yu), [key] — n. a female given name: derived from Antonius. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Antonello da Messina antoninianus Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language