/ Dictionary / Index N nainsook: Meaning and Definition of Find definitions for: nain•sook Pronunciation: (nān'sook, nan'-), [key] — n. a fine, soft-finished cotton fabric, usually white, used for lingerie and infants' wear. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nainsook (Thesaurus) Naima Naipaul Related Content Daily Word Quiz: banshee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language