<p><strong>Noun</strong></p><ul><li>Combustible matter used to maintain fire, such as coal, wood, oil, or gas, in order to create heat or power.</li><li>Something that gives nourishment; food.</li><li>An energy source for engines, power plants, or reactors: Kerosene is used as jet engine fuel.</li><li>Something that sustains or encourages; stimulant: Our discussion provided him with fuel for debate.</li><li><strong>Synonyms</strong>: stimulus, impetus, sustenance, ammunition</li></ul><p><strong>Verb</strong></p><ul><li>(used with object) fueled, fueling or (especially British) fuelled, fuelling: to supply with fuel.</li><li>(used without object) fueled, fueling or (especially British) fuelled, fuelling: to obtain or replenish fuel.</li></ul>