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unionism

American  
[yoon-yuh-niz-uhm] / ˈjun jəˌnɪz əm /

noun

  1. the principle of union, especially trade unionism.

  2. attachment to a union.

  3. (initial capital letter) loyalty to the federal union of the United States of America, especially at the time of the Civil War.


unionism 1 British  
/ ˈjuːnjəˌnɪzəm /

noun

  1. the principles of trade unions

  2. adherence to the principles of trade unions

  3. the principle or theory of any union

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

unionism 2 British  
/ ˈjuːnjəˌnɪzəm /

noun

  1. (sometimes not capital) the principles or adherence to the principles of Unionists

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of unionism

First recorded in 1835–45; union + -ism

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Hailed as a victory for Mr. Cameron’s Tory unionism, the vote to stay was 55% to 45%.

From The Wall Street Journal Jun. 25, 2026

In December 1886, Samuel Gompers founded the American Federation of Labor, organizing only skilled workers and focusing on “pure and simple” unionism that rejected state intervention.

From The Wall Street Journal Nov. 30, 2025

In 1905, the Industrial Workers of the World rejected the AFL’s narrow craft unionism, calling for one big union uniting all workers to abolish wage labor.

From The Wall Street Journal Nov. 30, 2025

"Rather than working with this injustice, accommodating it, going forward unionism needs to stand united against it."

From BBC Jan. 20, 2025

The place smelled of their beer and hair tonic, their punch-clock misery, their frayed nerves, their trade unionism.

From "Middlesex: A Novel" by Jeffrey Eugenides

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