The definition of fuel is anything that produces energy, power or heat.(noun)
Fuel is defined as to give energy or power.(verb)
An example of fuel is putting gas in your car.
See fuel in Webster's New World College Dictionary
Origin: ME fewell < OFr fouaille < ML fuale, focale < foca, hearth, for L focus, fireplace: see focus
See fuel in American Heritage Dictionary 4
Origin: Middle English feuel
Origin: , from Old French fouaille, feuaile
Origin: , from Vulgar Latin *focālia
Origin: , neuter pl. of *focālis, of the hearth or fireplace
Origin: , from Latin focus, hearth, fireplace.
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