We found 20 dictionaries that define the word coal mine:

General (17 matching dictionaries)

1. coal mine: Oxford Learner's Dictionaries
2. coal mine: Collins English Dictionary
3. coal mine: Vocabulary.com
4. coal-mine: Wordnik
5. coal mine: Cambridge Advanced Learner's Dictionary
6. coal mine: Wiktionary
7. coal mine: Infoplease Dictionary
8. coal mine: Dictionary.com
9. Coal mine: Wikipedia, the Free Encyclopedia
10. coal mine: Rhymezone
11. coal-mine: Webster's 1828 Dictionary
12. coal mine: FreeDictionary.org
13. coal mine: Mnemonic Dictionary
14. coal mine: TheFreeDictionary.com
15. coal mine: Longman Dictionary of Contemporary English

Computing (1 matching dictionary)

16. Coal-mine, coal mine: Encyclopedia

Slang (1 matching dictionary)

17. Coal Mine, Coal-mine: Urban Dictionary

Tech (1 matching dictionary)

18. Glossary of Coal Mining Terms (No longer online)

(Note: See coal_mines as well.)

Definitions from Wiktionary (coal mine) ▸ noun:  A mine from which coal ore or coal minerals are mined. Similar: iron mine, coalmining, tin mine, pitcoal, metal, coalfield, mother of coal, mine, gold mine, mineral, more... Opposite: coal-free zone, coalless area, non-coal mine Types: surface mine, strip mine, underground mine, mountaintop removal, more... Phrases: canary in a coal mine, canary in the coal mine, Carmichael coal mine, Zollverein Coal Mine Industrial Complex, Working in the Coal Mine, more... Adjectives: token, myn, winning, brood, tossing, opencast, ribbed, country, miny, coaled, metal ▸ Words similar to coal mine ▸ Usage examples for coal mine ▸ Idioms related to coal mine ▸ Wikipedia articles (New!) ▸ Words that often appear near coal mine ▸ Rhymes of coal mine ▸ Invented words related to coal mine