/ Dictionary / Index N nonce word: Meaning and Definition of Find definitions for: nonce' word" Pronunciation: [key] a word coined and used only for a particular occasion. Cf.(def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. noncellulosic nonchalance 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