/ Dictionary / Index O one-nighter: Meaning and Definition of Find definitions for: one-night•er Pronunciation: (wun'nī'tur), [key] — n. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. oneness one-night stand Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language