/ Dictionary / Index N N.S.W.: Meaning and Definition of Find definitions for: N.S.W. Pronunciation: [key] New South Wales. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nsw (Thesaurus) NSU -n't Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language