Coal- Definition

Definition of Coal

coal noun, often attributive
\ ˈkōl
\ plural coals

1 : a piece of glowing carbon or charred wood : ember
2 : charcoal sense 1
3a : a black or brownish-black solid combustible substance formed by the partial decomposition of vegetable matter without free access of air and under the influence of moisture and often increased pressure and temperature that is widely used as a natural fuel
b coals plural, British : pieces or a quantity of the fuel broken up for burning
merriam-webster.com/dictionary/coal