fuel oil

American

noun

an oil used for fuel, especially one used as a substitute for coal, as crude petroleum.

fuel oil British

noun

a liquid petroleum product having a flash point above 37.8°C: used as a substitute for coal in industrial furnaces, domestic heaters, ships, and locomotives

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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fuel oil

In April, exports rose 2.6 percent to $327.1 billion, fueled by crude oil, fuel oil and other petroleum products.

From Barron's ● Jun. 9, 2026

The visit comes a day after Cuba’s government said the country had run out of fuel oil and diesel needed to keep the lights on.

From The Wall Street Journal ● May 14, 2026

The average price of very low-sulfur fuel oil has risen 70% to $925 per metric ton at the world’s top ports since the war started.

From Los Angeles Times ● May 8, 2026

Prices for fuel oil jumped more than 30% in the biggest surge since February 2000.

From BBC ● Apr. 10, 2026

When the Soviet Union stopped supplying cheap fuel oil in the early 1990s, city-based, oil-powered generators sputtered to a halt.

From "Escape from Camp 14: One Man's Remarkable Odyssey from North Korea to Freedom in the West" by Blaine Harden

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023