Breadcrumb Home > Dictionary > Index L labor union: Meaning and Definition of Find definitions for: la'bor un"ion Pronunciation: [key] an organization of wage earners or salaried employees for mutual aid and protection and for dealing collectively with employers; trade union. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. labor spy labor unionist TrendingHere are the facts and trivia that people are buzzing about. Ramadan and Eid al-Fitr 42 Best War Movie Quotes Current Events This Week: March 2023 Recycling Facts William Shakespeare Worst U.S. Forest Fires ✖ Related Content Daily Word Quiz: manoamano Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language