/ Dictionary / Index N NIRA: Meaning and Definition of Find definitions for: NIRA Pronunciation: [key] National Industrial Recovery Act. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. nip-up Nirenberg Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language