propeller

noun

pro·​pel·​ler prə-ˈpe-lər How to pronounce propeller (audio)
variants or less commonly propellor
: one that propels
especially : a device that consists of a central hub with radiating blades placed and twisted so that each forms part of a helical surface and that is used to propel a vehicle (such as a ship or airplane)

Examples of propeller 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.
In a stationary proof-of-concept, the beam powered up a model propeller blade. — Mrigakshi Dixit, Interesting Engineering, 29 July 2026 The bomb has to explode; the propeller needs to be properly manufactured, and each attack must get past counter measures – electronic and otherwise. — John Sviokla, Forbes.com, 29 July 2026 The Philippines had 10 ships, three of which came from its coast guard; a small Philippine government propeller plane also buzzed low above the vessels during the mission. — Ivan Watson, CNN Money, 24 July 2026 The ground crews have to navigate numerous planes landing, loading and taking off, while avoiding spinning propellers and keeping the equipment prepared. — Regina Elling, San Diego Union-Tribune, 21 July 2026 See All Example Sentences for propeller

Word History

Etymology

propel + -er entry 2

First Known Use

1780, in the meaning defined above

Time Traveler
The first known use of propeller was in 1780

Phrases Containing propeller

Rhymes for propeller

See All Rhymes for propeller

Browse Nearby Words

propellant
propeller
propeller cuff
See all Nearby Words

Cite this Entry

“Propeller.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/propeller. Accessed 5 Aug. 2026.

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Kids Definition

propeller

noun
pro·​pel·​ler prə-ˈpel-ər How to pronounce propeller (audio)
: a device consisting of a hub fitted with blades that is made to turn rapidly by an engine and is used especially for propelling airplanes and ships

More from Merriam-Webster on propeller

Nglish: Translation of propeller for Spanish Speakers

Britannica.com: Encyclopedia article about propeller

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