/ Thesaurus / N Synonyms of national labor relations board Find synonyms for: Noun1. National Labor Relations Board, NLRB, independent agencyusage: an independent agency of the United States government charged with mediating disputes between management and labor unionsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language