Definitions:

1. A continuous association of wage-earners for the purpose of maintaining or improving the conditions of their employment. NOUN
   • The labor union organized a strike to protest against unfair treatment and low wages.
2. An organization of employees formed to bargain with the employer. NOUN
   • The labor union negotiated a new contract that included higher wages and better health benefits for its members.
3. An organized group of workers who come together to collectively protect and promote their interests, particularly in relation to their working conditions, wages, benefits, and rights. NOUN
   • The workers decided to join a labor union to collectively bargain for safer working conditions.

Synonyms:

• organized labor
• trade union
• union