/ Dictionary / Index N nonexistence: Meaning and Definition of Find definitions for: non•ex•ist•ence Pronunciation: (non"ig-zis'tuns), [key] — n. absence of existence. a thing that has no existence. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nonexistence (Thesaurus) nonevent nonexportation Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language