labor union

noun

: an organization of workers formed for the purpose of advancing its members' interests in respect to wages, benefits, and working conditions
… members of a labor union with job protection under a collective bargaining agreement with the employer.Seth Sandronsky

Examples of labor union in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The proposal is backed by the labor union SEIU United Healthcare Workers West as a direct response to federal cuts to Medicaid and food assistance programs approved earlier this year. Nicole Nixon, Sacbee.com, 30 Dec. 2025 Inside is a set of tools Tom brought to job sites as an ironworker and member of the Ironworkers Local 444 labor union. Marissa Sulek, CBS News, 27 Dec. 2025 The inaugural committee also includes actress and activist Cynthia Nixon, novelists Colson Whitehead and Min Jin Lee, musicians Sonny Rollins and John Turturro, comedian The Kid Mero, and representatives from labor unions and community organizations across the city. Samantha-Jo Roth, The Washington Examiner, 25 Dec. 2025 If passed, the tax would be expected to raise $360 million for the county’s budget in its first year, said David Lagstein, a spokesperson for SEIU Local 221, the largest labor union representing county employees and one of the groups pushing the measure. Lucas Robinson, San Diego Union-Tribune, 24 Dec. 2025 See All Example Sentences for labor union

Word History

First Known Use

1849, in the meaning defined above

Time Traveler
The first known use of labor union was in 1849

Cite this Entry

“Labor union.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/labor%20union. Accessed 4 Jan. 2026.

Kids Definition

labor union

noun
: an organization of workers formed to protect the rights and advance the interests of its members concerning wages, benefits, and working conditions

Legal Definition

labor union

noun
: a labor organization usually consisting of workers of the same trade that is formed for the purpose of advancing its members' interests (as through collective bargaining) in respect to wages, benefits, and working conditions see also craft union, bargaining unit

Note: Labor unions and employers are subject to the provisions of the National Labor Relations Act (NLRA or Wagner Act), as amended by the Labor Management Relations (Taft-Hartley) Act and the Labor Management Reporting and Disclosure (Landrum-Griffin) Act. The NLRA authorized the establishment of the National Labor Relations Board, the federal agency which administers the provisions of the Act.

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