What is the meaning of coal mine?

noun

  • A mine where coal is dug from the ground.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). coal mine. Retrieved September 20, 2026, from http://smartdefine.org/coal_mine/definitions/1202753
ChicagoWordNet. 2010. "coal mine" http://smartdefine.org/coal_mine/definitions/1202753 (accessed September 20, 2026).
HarvardWordNet 2010, coal mine, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/coal_mine/definitions/1202753>.
MLAWordNet. "coal mine" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/coal_mine/definitions/1202753>