Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “coal mine”

coal mine

noun [C]    
the deep hole or system of holes under the ground from which coal is removedMining and quarrying coal mining     noun [U] the business, job, or process of removing coal from the groundMining and quarrying
(Definition of coal mine noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of coal mine

Definitions of “coal mine” in other dictionaries

Word of the Day

limber up

to do gentle exercises to stretch the muscles in order to prepare the body for more active physical exercise

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More