Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun fuel_oil

1 sense of fuel oil

Sense 1
fuel oil, heating oil -- (a petroleum product used for fuel)
       => oil -- (a slippery or viscous liquid or liquefiable substance not miscible with water)
       => fuel -- (a substance that can be consumed to produce energy; "more fuel is needed during the winter months"; "they developed alternative fuels for aircraft")