fossil fuels

NOUN

fuel derived from prehistoric organisms

Synonyms

WEAK

hydrocarbon deposit nonrenewable energy nonrenewable fuel source

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Exxon prides itself on its ability to find and extract fossil fuels hidden deep in the earth’s crevices.

From The Wall Street Journal • May 28, 2026

According to the study, dependence on fossil fuels has temporarily hidden the effects of ecological overshoot by supporting food production, industrial growth, and energy supplies.

From Science Daily • May 27, 2026

As well as pricing issues, some commentators believe China wants to avoid over-dependence on Russian fossil fuels.

From BBC • May 20, 2026

But building infrastructure takes time, as does weening the public off fossil fuels.

From Barron's • May 19, 2026

“You’re kidding, right? You don’t think the huge amounts of greenhouse gases we’re releasing into the air by burning fossil fuels has anything to do with the fact that the earth keeps getting hotter?”

From "Two Degrees" by Alan Gratz