/ Dictionary / Index N National Labor Relations Board: Meaning and Definition of Find definitions for: Na'tional La'bor Rela'tions Board" Pronunciation: [key] — U.S. Govt. U.S. Govt. a board consisting of five members, originally set up under the National Labor Relations Act to guarantee workers' rights to organize and to prevent unfair labor practices. Abbr.: NLRB Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. National Labor Relations Act National League Related Content Daily Word Quiz: prevalent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language