Definition, Meaning & Synonyms
coal
noun
/koʊl/

Definition
A black or brownish-black sedimentary rock that is combustible and is primarily composed of carbon along with various other elements.

Examples
- Coal has been a major source of energy for centuries.
- The coal mine has been closed for many years.
- He used coal to heat his home during the winter.

Meaning
Coal is a fossil fuel that is used as a primary energy source in power generation, as well as in steel production and other industrial processes.

Synonyms
- charcoal
- fuel
- braise
- carbon