fuel in WordNet English dictionary

1. provide with fuel
   "Oil fires the furnace"
   fuel  fire 
   
2. stimulate
   "fuel the debate on creationism"
   fuel 
   
3. provide with a combustible substance that provides energy
   "fuel aircraft, ships, and cars"
   fuel 
   
4. take in fuel, as of a ship
   "The tanker fueled in Bahrain"
   fuel 
   

1. a substance that can be consumed to produce energy
   "more fuel is needed during the winter months"; "they developed alternative fuels for aircraft"
   fuel