Dictionary definition · coal
noun
- fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period
- a hot fragment of wood or coal that is left from a fire and is glowing or smoldering
verb
- burn to charcoal"Without a drenching rain, the forest fire will char everything"
- supply with coal
- take in coal"The big ship coaled"
Source: Open English WordNet (CC BY 4.0).