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.
The two also credit the ease of access to regional funds as a great propeller. Rafa Sales Ross, Variety, 25 Sep. 2025 The drone’s propeller may have gotten caught in power lines and exploded over a packed field. Jacqueline Charles, Miami Herald, 24 Sep. 2025 Brocken’s original design called for MP8318 100 kV, 3,000 W motors each turning 30-inch propellers. Kaif Shaikh, Interesting Engineering, 23 Sep. 2025 Tinker got caught in the boat’s propeller and was eventually pronounced dead at a clinic, troopers said. Paloma Chavez, Sacbee.com, 19 Sep. 2025 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

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Cite this Entry

“Propeller.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/propeller. Accessed 8 Oct. 2025.

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

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