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

Meanwhile, latest market figures indicate heavy fuel oil commonly used by these carriers has reached 686 dollars per metric ton, up 67% from the same period last year. — CNBC, 7 Oct. 2026

Iraq already uses around 1,000 trucks daily to transport fuel oil overland to Syria's Mediterranean port city Baniyas, where it is loaded onto tankers for shipment further afield. — Frank Andrews, CBS News, 7 Oct. 2026

Heavy fuel oil remains available when lower-carbon fuels are unavailable or do not make economic sense. — Aamir Khollam, Interesting Engineering, 5 Oct. 2026

In May, Cuba’s energy minister said the country had run out of diesel and fuel oil. — Nora Gámez Torres, Miami Herald, 2 Oct. 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