/ Dictionary / Index N NS: Meaning and Definition of Find definitions for: NS Pronunciation: [key] not sufficient (funds). Nova Scotia, Canada (approved for postal use). nuclear ship. Ns Pronunciation: [key] nimbostratus. ns Pronunciation: [key] nanosecond; nanoseconds. N.S. Pronunciation: [key] New Style. Nova Scotia. n.s. Pronunciation: [key] not specified. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. NRTA NSA Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language