fuel oil

noun

: an oil that is used for fuel and that usually has a higher flash point than kerosene

Examples of fuel oil in a Sentence

Recent Examples on the Web

However, gasoline and fuel oil both saw decreases of more than 9% in June. — Jeff Cox, CNBC, 14 July 2026

Cruising is still one of the most carbon-intensive forms of tourism, usually heavily dependent on both mass consumption and fuel oil. — Indrabati Lahiri, Forbes.com, 8 July 2026

Furthermore, the clean juice will save about 15,000 cubic meters of fuel oil that would otherwise be burned to keep the Lufeng pumps spinning. — Mrigakshi Dixit, Interesting Engineering, 29 June 2026

And while electrification and sustainable fuels have started to address emissions in cars and planes, shipping has remained stubbornly tied to heavy fuel oil. — Mack Degeurin, Popular Science, 25 June 2026

Word History

First Known Use

1893, in the meaning defined above

Rhymes for fuel oil

• airfoil
• benzoyl
• despoil
• embroil
• etoile
• gargoyle
• recoil
• subsoil
• tinfoil
• topsoil
• trefoil
• turmoil

Kids Definition

fuel oil

noun

: an oil that is used for fuel and that usually ignites at a higher temperature than kerosene