We found 27 dictionaries that define the word blacks:

General (15 matching dictionaries)

1. blacks: Merriam-Webster
2. blacks: Collins English Dictionary
3. Blacks, blacks: Vocabulary.com
4. Black's, Blacks, Blacks, black's, blacks: Wordnik
5. blacks: Cambridge Advanced Learner's Dictionary
6. Blacks, blacks: Wiktionary
7. Blacks: Dictionary.com
8. Blacks (Canada), Blacks (disambiguation), Blacks, The Blacks (band), The Blacks (disambiguation), The Blacks (film), The Blacks (play), The Blacks: Wikipedia, the Free Encyclopedia
9. Blacks: Online Plain Text English Dictionary
10. blacks: Webster's Revised Unabridged, 1913 Edition
11. Blacks: AllWords.com Multi-Lingual Dictionary
12. Blacks: E Cobham Brewer, The Reader's Handbook
13. Blacks: Dictionary of Phrase and Fable (1898)
14. blacks: FreeDictionary.org
15. Blacks: TheFreeDictionary.com

Art (1 matching dictionary)

16. Technical Glossary of Theatre Terms (No longer online)

Business (3 matching dictionaries)

17. THE 'LECTRIC LAW LIBRARY'S REFERENCE ROOM (No longer online)
18. blacks: Legal dictionary
19. blacks: Financial dictionary

Computing (1 matching dictionary)

20. blacks: Encyclopedia

Medicine (2 matching dictionaries)

21. online medical dictionary (No longer online)
22. blacks: Medical dictionary

Miscellaneous (1 matching dictionary)

23. blacks: Idioms

Science (1 matching dictionary)

24. Agricultural Thesaurus and Glossary (No longer online)

Slang (2 matching dictionaries)

25. Blacks: Street Terms: Drugs and the Drug Trade
26. blacks: Urban Dictionary

Tech (1 matching dictionary)

27. Book Binding (No longer online)

(Note: See black as well.)

Definitions from Wiktionary (blacks) ▸ noun:  A kind of ink in used in copperplate printing, prepared from the charred husks of the grape and the residue of the wine press. ▸ noun:  (UK) Soot flying in the air. ▸ noun:  Black garments, etc. Similar: pitch-black, dark-skinned, mordant, blacken, pitch-dark, soiled, dirty, dark, unclean, bootleg, more... Opposite: whites, lights, brights, clears, pale, colors Phrases: All Blacks, carbon blacks, blacks out, blacks eye, charcoal blacks, more... Adjectives: free, more, southern, american, young, poor, few, class, urban, northern, rural ▸ Words similar to blacks ▸ Usage examples for blacks ▸ Idioms related to blacks ▸ Wikipedia articles (New!) ▸ Popular adjectives describing blacks ▸ Words that often appear near blacks ▸ Rhymes of blacks ▸ Invented words related to blacks