coal mine

noun

1. a mine or pit from which coal is obtained.

Other Words From

• coal miner noun
• coal mining noun

Word History and Origins

Origin of coal mine¹

First recorded in 1605–15

Example Sentences

In other words, it would be wise to think of Mizelle’s ruling as a canary in the coal mine.

From Los Angeles Times

“I feel like the patients down here are being treated like the canary in the coal mine,” Matt Dickson said.

From Los Angeles Times

Last year, an explosion at a coal mine in the northern city of Damghan killed six people, also likely the result of methane leak according to local media.

From BBC

An explosion caused by a gas leak at a coal mine in eastern Iran has killed at least 51 people, state media said on Sunday.

From BBC

A decision is expected on plans to build the UK's first deep coal mine in more than 30 years.

From BBC