We found 26 dictionaries that define the word labor union:

General (19 matching dictionaries)

1. labor union: Longman Dictionary of Contemporary English
2. labor union: Merriam-Webster
3. labor union: Oxford Learner's Dictionaries
4. labor union: American Heritage Dictionary of the English Language
5. labor union: Collins English Dictionary
6. labor union: Vocabulary.com
7. labor-union: Wordnik
8. labor union: Cambridge Advanced Learner's Dictionary
9. labor union: Wiktionary
10. labor union: The Wordsmyth English Dictionary-Thesaurus
11. labor union: Infoplease Dictionary
12. labor union: Dictionary.com
13. Labor Union, Labor union, The Labor Union: Wikipedia, the Free Encyclopedia
14. labor union: Rhymezone
15. labor union: FreeDictionary.org
16. labor union: Mnemonic Dictionary
17. labor union, union, labor: TheFreeDictionary.com

Business (4 matching dictionaries)

18. labor union: Merriam-Webster Legal Dictionary
19. Glossary of Legal Terms (No longer online)
20. Labor Union, union, labor: Legal dictionary
21. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

22. labor union, union, labor: Encyclopedia

Miscellaneous (1 matching dictionary)

23. Political (No longer online)

Slang (1 matching dictionary)

24. labor union: Urban Dictionary

(Note: See labor_unions as well.)

Definitions from Wiktionary (labor union) ▸ noun:  (Canada, US) A continuous association of wage-earners for the purpose of maintaining or improving the conditions of their employment; a trade union. Similar: trade union, union, brotherhood, trades union, bargaining unit, customs union, union wage premium, wage labor, collective bargaining, trade dispute, more... Opposite: employer, management, company Phrases: Amazon Labor Union, Forced labor of Germans in the Soviet Union, Forced labor in the Soviet Union, undertaking for a labor union, more... Adjectives: businessy, business, merchantile, commercial, white-collar, probusiness, salt, officinal, protrade, mercantile, whitecollar ▸ Words similar to labor union ▸ Usage examples for labor union ▸ Idioms related to labor union ▸ Wikipedia articles (New!) ▸ Words that often appear near labor union ▸ Rhymes of labor union ▸ Invented words related to labor union