/ Dictionary / Index N NJ: Meaning and Definition of Find definitions for: NJ Pronunciation: [key] New Jersey (approved esp. for use with zip code). N.J. Pronunciation: [key] New Jersey. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: nj (Thesaurus) Nizhni Tagil Njord Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language