Coal - mining-Meaning, Definition & English Examples
Coal is a black or brownish-black sedimentary rock used as a fuel. It forms from decayed plant matter over millions of years and is burned for heat and electricity.
Definition:
A black or brownish-black sedimentary rock used as fuel, formed from fossilized plants.
Synonyms:
charcoal, carbon, anthracite, coke
Part of Speech:
noun
Antonyms:
diamond, gold
Common Collocations:
coal mine, coal fire, coal dust, coal industry
Derivatives:
coaling, coaly
Usage Tips:
Use "coal" to refer to the fuel source; avoid confusing it with "charcoal," which is processed wood residue.
Common Phrases:
carry coals to Newcastle, haul someone over the coals, strike while the iron is hot
Etymology:
From Old English *col*, meaning "charcoal," related to Dutch *kool* and German *Kohle*.
Examples:
- 1. The miners extracted coal from the deep underground tunnels.
- 2. She added more coal to the fire to keep warm in winter.
- 3. The factory switched from burning coal to cleaner energy sources.
- 4. Coal deposits formed millions of years ago from ancient plant matter.