/ Dictionary / Index N nightgown: Meaning and Definition of Find definitions for: night•gown Pronunciation: (nīt'goun"), [key] — n. a loose gown, worn in bed by women or children. a dressing gown. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nightgown (Thesaurus) nightglow nighthawk Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language