fuel
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noun
material such as coal, gas, or oil that is burned to produce heat or power.
〖種類では可算〗燃料〘石炭･石油･ガス･薪など〙
short for nuclear fuel.
核燃料(nuclear fuel)
food, drink, or drugs as a source of energy:
エネルギー源(としての食物)
e.g. any protein intake can also be used as fuel.
a thing that sustains or inflames passion, argument, or other emotion or activity:
【怒りなどを】燃えたたせる［あおる］もの «to»
e.g. the remuneration packages will add fuel to the debate about top-level rewards.
verb (fuels, fueling, fueled; British fuels, fuelling, fuelled) with object
1. supply or power (an industrial plant, vehicle, or machine) with fuel:
〈乗り物など〉に給油する, 燃料を供給する.
e.g. the plan includes a hydroelectric plant to fuel a paper factory
e.g. figurative : a big novel that is fueled by anger and revenge.
no object (fuel up) (of a person) eat a meal:
｟比喩的に｠ (食事などをして)燃料補給する.
e.g. arrive straight from work and fuel up on the complimentary buffet.
2. cause (a fire) to burn more intensely.
sustain or inflame (a feeling or activity):
〈事態･怒りなど〉を悪化［激化］させる, 〈感情･うわさ･論争など〉をあおり立てる, …に勢いを与える.
e.g. his rascal heart and private pain fuel his passion as an actor.
PHRASES
add fuel to the fire (or add fuel to the flames)
cause a situation or conflict to become more intense, especially by provocative comments.
ORIGIN
Middle English: from Old French fouaille, based on Latin focus ‘hearth’ (in late Latin ‘fire’).