coal mine: meaning, definition, pronunciation and examples
B2Neutral to Technical
Quick answer
What does “coal mine” mean?
An underground excavation or system of tunnels from which coal is extracted.
Audio
Pronunciation
Definition
Meaning and Definition
An underground excavation or system of tunnels from which coal is extracted.
A source of something valuable or abundant; a situation or environment that is dark, dirty, or dangerous.
Dialectal Variation
British vs American Usage
Differences
No significant lexical difference. 'Coal pit' is a slightly more dated/regional British alternative. Spelling of related terms differs (e.g., 'miner' vs. 'mineworker' is stylistic).
Connotations
Similar industrial, historical, and often socio-economic connotations in both varieties. Associated with regional identity (e.g., Yorkshire, Appalachia, Wales, Pennsylvania).
Frequency
Slightly higher frequency in British English due to historical prominence in the UK's industrial revolution, but common in both.
Grammar
How to Use “coal mine” in a Sentence
[Verb] + the coal mine: close, open, operate, work in, visit[Adjective] + coal mine: abandoned, active, deep, profitableVocabulary
Collocations
Examples
Examples of “coal mine” in a Sentence
verb
British English
- The company sought to coal-mine the northern seam. (rare, hyphenated verb form)
American English
- They planned to coal mine the area. (rare, open form)
adjective
British English
- The coal-mining community faced hardship. (hyphenated as compound adjective)
- Coal mine safety regulations were updated.
American English
- Coal mining towns dot the region.
- Coal mine operators attended the meeting.
Usage
Meaning in Context
Business
Discussions of energy sectors, industrial assets, and closures: 'The company divested its last coal mine.'
Academic
Historical, economic, or geological studies: 'The social impact of the coal mine's closure was profound.'
Everyday
Referring to local history, jobs, or metaphors: 'His grandfather worked in a coal mine.' 'This archive is a coal mine of data.'
Technical
Engineering, mining, and safety regulations: 'Ventilation systems are critical in a deep coal mine.'
Vocabulary
Synonyms of “coal mine”
Strong
Neutral
Weak
Watch out
Common Mistakes When Using “coal mine”
- Spelling as one word: 'coalmine' (acceptable but less common than two words).
- Using 'coal miner' (the person) interchangeably with 'coal mine' (the place).
- Incorrect preposition: 'He works on a coal mine' (should be 'in' or 'at').
FAQ
Frequently Asked Questions
Both 'coal mine' (two words) and 'coalmine' (one word) are found, but the two-word form is more common in modern edited writing.
'Colliery' is a more formal, chiefly British term that often refers to the whole mining complex (including buildings and equipment), not just the underground excavation.
Literally, it is neutral. Metaphorically, 'a coal mine of information' is positive (rich source), while 'like working in a coal mine' is usually negative (difficult, oppressive).
It refers to an early warning sign of danger. Miners used to take caged canaries underground; if the bird died from toxic gas, it warned the miners to evacuate.
An underground excavation or system of tunnels from which coal is extracted.
Coal mine is usually neutral to technical in register.
Coal mine: in British English it is pronounced /ˈkəʊl ˌmaɪn/, and in American English it is pronounced /ˈkoʊl ˌmaɪn/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “Canary in a coal mine (a warning sign)”
- “Like sending a canary into a coal mine”
Learning
Memory Aids
Mnemonic
Think of COAL (black rock) + MINE (a place you dig). You dig for coal in a coal mine.
Conceptual Metaphor
SOURCE IS A MINE (e.g., a mine of information), DANGEROUS/OPPRESSIVE PLACE IS A MINE (e.g., a toxic work environment was a coal mine).
Practice
Quiz
What is the most common metaphorical use of 'coal mine'?