coal in WordNet English dictionary

1. burn to charcoal
   "Without a drenching rain, the forest fire will char everything"
   char  coal 
   
2. take in coal
   "The big ship coaled"
   coal 
   
3. supply with coal
   coal 
   

1. a hot fragment of wood or coal that is left from a fire and is glowing or smoldering
   ember  coal 
   
2. fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period
   coal