jet engine

noun

: an engine that produces motion as a result of the rearward discharge of a jet of fluid
specifically : an airplane engine that uses atmospheric oxygen to burn fuel and produces a rearward discharge of heated air and exhaust gases see airplane illustration

Examples of jet engine in a Sentence

Recent Examples on the Web
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Some are armed with thermobaric warheads, are armored and some are powered by jet engines. David Brennan, ABC News, 1 Aug. 2025 Ukraine has supplied vital technology to China, most notably jet engines, which has been a boon for China’s military and industrial development. Da Wei, Foreign Affairs, 29 July 2025 Also tucked away into the backpack is the jet engine. Brent Rose, Outside Online, 24 July 2025 Open investigations are focused on copper, lumber, semi-trucks and parts, critical minerals, aircraft & jet engines, and pharmaceuticals. Steve Banker, Forbes.com, 23 July 2025 See All Example Sentences for jet engine

Word History

First Known Use

1933, in the meaning defined above

Time Traveler
The first known use of jet engine was in 1933

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Cite this Entry

“Jet engine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/jet%20engine. Accessed 8 Aug. 2025.

Kids Definition

jet engine

noun
: an engine that produces motion as a result of the rearward discharge of a jet of fluid
especially : an aircraft engine that uses atmospheric oxygen to burn fuel and produces a rearward discharge of heated air and exhaust gases

More from Merriam-Webster on jet engine

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