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

Consumers saw incredible sticker shock over the past year for fuel oil, which went up 52% year over year. — Susan Tompor, Freep.com, 11 Sep. 2026

With American refiners funneling the fuel oil into international markets, the domestic supply has dwindled, driving up prices. — Clara Harter, Los Angeles Times, 4 Sep. 2026

At least one ship entered using the Iranian route, and a small tanker laden with Iranian fuel oil exited, data showed. — August 17, CBS News, 17 Aug. 2026

The carrier also uses a dual-fuel propulsion system that operates on conventional fuel oil and LNG. — Sujita Sinha, Interesting Engineering, 23 July 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