A material such as wood, coal, gas, or oil burned to produce heat or power, Something that maintains or stimulates an activity or emotion, a substance that can be consumed to produce energy, verb_ provide with a combustible substance that provides energy, stimulate, take in fuel, as of a ship, intransitive verb_ To provide with fuel, To support or stimulate the activity or existence of, transitive verb_ obsolete To feed with fuel, obsolete To store or furnish with fuel or firing