/ Dictionary / Index O ontic: Meaning and Definition of Find definitions for: on•tic Pronunciation: (on'tik), [key] — adj. Philos. possessing the character of real rather than phenomenal existence; noumenal. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. on-the-spot onto Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language