material such as coal, gas, or oil that is burned to produce heat or power

one aircraft ran out of fuel and had to ditch

buses powered by alternative fuels

an engine with high fuel consumption

supply or power (an industrial plant, vehicle, or machine) with fuel

power stations fuelled by low-grade coal

cause (a fire) to burn more intensely

petrol may have been used to fuel the fire

don't open a door or you could fuel the flames