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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Its products include jet engine components, aerospace fasteners, airframe structures, and forged aluminum wheels for commercial trucks. Brett Owens, Forbes.com, 18 Jan. 2026 Ramjets are jet engines that effectively have no moving parts. New Atlas, 14 Jan. 2026 Russia has introduced a new version of its Geran long-range, one-way attack drone, now equipped with a jet engine. Jijo Malayil, Interesting Engineering, 13 Jan. 2026 All rooms are soundproofed to the point that roaring jet engines don’t produce a muffle, even through the floor-to-ceiling windows, which will ensure you don’t miss out on the action. Condé Nast, Condé Nast Traveler, 9 Jan. 2026 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

Browse Nearby Words

Cite this Entry

“Jet engine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/jet%20engine. Accessed 27 Jan. 2026.

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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!