What do you and your car have in common? You both run on fuel. Whether its gasoline or nutritious food, fuel produces energy to get up and go.

Fuel can also act as a verb that has several different meanings, all related to stimulating something or providing energy. Your brother might fuel up on whole-wheat bread with peanut butter a few hours before a big game. A teacher assigns readings to fuel meaningful class discussion. Memories of your mom's delicious dinners might fuel your desire to learn to cook.

Definitions of fuel
  1. noun
    a substance that can be consumed to produce energy
    “more fuel is needed during the winter months”
    “they developed alternative fuels for aircraft”
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    plant materials and animal waste used as fuel
    occurs in natural gas; used in the manufacture of rubber and fuels
    charcoal, wood coal
    a carbonaceous material obtained by heating wood or other organic matter in the absence of air
    coal gas
    gaseous mixture produced by distillation of bituminous coal and used for heating and lighting
    carbon fuel produced by distillation of coal
    diesel fuel, diesel oil
    a heavy mineral oil used as fuel in diesel engines
    fuel that is burning and is used as a means for cooking
    fossil fuel
    fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content
    fuel oil, heating oil
    a petroleum product used for fuel
    a gasoline substitute consisting of 90% gasoline and 10% grain alcohol from corn
    gas, gasolene, gasoline, petrol
    a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines
    something that can serve as a source of light
    coal oil, kerosene, kerosine, lamp oil
    a flammable hydrocarbon oil used as fuel in lamps and heaters
    methanol, methyl alcohol, wood alcohol, wood spirit
    a light volatile flammable poisonous liquid alcohol; used as an antifreeze and solvent and fuel and as a denaturant for ethyl alcohol
    nuclear fuel
    fuel (such as uranium) that can be used in nuclear reactors as a source of electricity
    colorless gas found in natural gas and petroleum; used as a fuel
    red fire
    combustible material (usually salts of lithium or strontium) that burns bright red; used in flares and fireworks
    combustible, combustible material
    a substance that can be burned to provide heat or power
    water gas
    a mixture of hydrogen and carbon monoxide with small amounts of other gases; made by blowing steam over hot coke or coal
    wood used for fuel
    igniter, ignitor, lighter
    a substance used to ignite or kindle a fire
    town gas
    coal gas manufactured for domestic and industrial use
    diesel oil used in cars and lorries with diesel engines; from d(iesel) e(ngine) r(oad) v(ehicle)
    leaded gasoline, leaded petrol
    gasoline treated with a lead compound to reduce motor knocks
    fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period
    (a piece of) a substance that burns easily and can be used to start a coal or coke fire
    paraffin, paraffin oil
    (British usage) kerosine
    gasoline jelled with aluminum soaps; highly incendiary liquid used in fire bombs and flamethrowers
    gas, natural gas
    a fossil fuel in the gaseous state; used for cooking and heating homes
    gas oil
    an oil formed through distillation of petroleum of intermediate boiling range and viscosity
    crude, crude oil, fossil oil, oil, petroleum, rock oil
    a dark oil consisting mainly of hydrocarbons
    unleaded gasoline, unleaded petrol
    gasoline that has not been treated with a lead compound
    firewood cut and stacked in cords; wood sold by the cord
    the large log at the back of a hearth fire
    brand, firebrand
    a piece of wood that has been burned or is burning
    pine knot
    a joint of pine wood used for fuel
    kindling, punk, spunk, tinder, touchwood
    material for starting a fire
    substance that smolders when ignited; used to light fuses (especially fireworks)
    type of:
    a particular kind or species of matter with uniform properties
  2. verb
    provide with fuel
    synonyms: fire
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    type of:
    furnish, provide, render, supply
    give something useful or necessary to
  3. verb
    take in fuel, as of a ship
    “The tanker fueled in Bahrain”
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    take on more fuel, as of a plane, ship, or car
    type of:
    take in, take up
  4. verb
    provide with a combustible substance that provides energy
    fuel aircraft, ships, and cars”
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    gas up
    fill with gasoline
    provide with additional fuel, as of aircraft, ships, and cars
    fill (a ship's bunker) with coal or oil
    type of:
    furnish, provide, render, supply
    give something useful or necessary to
  5. verb
    fuel the debate on creationism”
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    type of:
    excite, shake, shake up, stimulate, stir
    stir the feelings, emotions, or peace of
Word Family

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