coal mine
Americannoun
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Nouns
Etymology
Origin of coal mine
First recorded in 1605–15
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Or were they particularly fragile canaries in an epidemiological coal mine?
From The Wall Street Journal • Jun. 9, 2026
"When economic growth was more important than social stability, the central government relaxed its guard against this kind of 'collusion'. At such times, coal mine output increased, and coal mine accidents also rose."
From BBC • May 31, 2026
"There's still much room for improvement in coal mine safety, and plugging these gaps is of utmost urgency."
From BBC • May 25, 2026
Reports claim that some workers did not bring mandatory tracking devices into the mines, and blueprints provided by the Liushenyu coal mine to authorities did not match the conditions at the mine, complicating rescue efforts.
From BBC • May 25, 2026
Shin entered his first coal mine at the age of ten.
From "Escape from Camp 14: One Man's Remarkable Odyssey from North Korea to Freedom in the West" by Blaine Harden
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
