Coal
Pronunciation: /ˈkoʊl/
Coal (noun)
- a black or dark brown rock used as fuel for burning to produce heat or energy.
- a piece of this rock that is burning or glowing.
- the industry or process of extracting this rock from the ground.
Examples
- Coal is used to generate electricity in many countries.
- The train was powered by coal in the past.
Common collocations: burn coal, coal reserves, coal power, glowing coal, hot coal