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See more synonyms for unionize on Thesaurus.com
verb (used with object), un·ion·ized, un·ion·iz·ing.
  1. to form into a union.
  2. to organize into a labor union; bring into or incorporate in a labor union.
  3. to subject to the rules of a labor union.
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verb (used without object), un·ion·ized, un·ion·iz·ing.
  1. to form a union.
  2. to join in a labor union.
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Also especially British, un·ion·ise.

Origin of unionize

First recorded in 1835–45; union + -ize
Related formsun·ion·i·za·tion, nounun·ion·iz·er, nouno·ver·un·ion·ize, verb, o·ver·un·ion·ized, o·ver·un·ion·iz·ing.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for unionized

incorporated, organized, combined, associated, federal, federated, unionized, syndicated, corporate

Examples from the Web for unionized

Contemporary Examples of unionized

Historical Examples of unionized

British Dictionary definitions for unionized



  1. to organize (workers) into a trade union
  2. to join or cause to join a trade union
  3. (tr) to subject to the rules or codes of a trade union
  4. to join or become joined in marriage or civil partnership
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Derived Formsunionization or unionisation, noun
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

Word Origin and History for unionized



"make into a union," 1841, from union + -ize. Related: Unionized; unionizing.

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Online Etymology Dictionary, © 2010 Douglas Harper