coal mine
Americannoun
Other Word Forms
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.
"There's still much room for improvement in coal mine safety, and plugging these gaps is of utmost urgency."
From BBC • May 25, 2026
In Changzhi, local authorities last year fined the Liushenyu coal mine, the site of Friday’s deadly explosion, citing two minor safety problems, government records show.
From The Wall Street Journal • May 23, 2026
They compared the monitoring approach to a canary in a coal mine because it may provide an efficient way to detect major shifts in this climate-regulating circulation.
From Science Daily • May 10, 2026
The question is whether it is a canary in the coal mine.
From Barron's • Apr. 18, 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.
