The noun fuel has 1 sense (first 1 from tagged texts)
1. (5) fuel -- (a substance that can be consumed to produce energy; "more fuel is needed during the winter months"; "they developed alternative fuels for aircraft")
Overview of verb fuel
The verb fuel has 4 senses (first 1 from tagged texts)
1. (2) fuel -- (provide with a combustible substance that provides energy; "fuel aircraft, ships, and cars")
2. fuel, fire -- (provide with fuel; "Oil fires the furnace")
3. fuel -- (take in fuel, as of a ship; "The tanker fueled in Bahrain")
4. fuel -- (stimulate; "fuel the debate on creationism")