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jackhammer

noun

jack·​ham·​mer ˈjak-ˌha-mər How to pronounce jackhammer (audio)
1
: a pneumatically operated percussive rock-drilling tool usually held in the hands
2
: a device in which a tool (such as a chisel for breaking up pavements) is driven percussively by compressed air
jackhammer verb

Examples of jackhammer 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.
Television reports showed rescue personnel using jackhammers, circular saws, farm tools and sometimes their bare hands to dig in areas of thick mud, rocks and uprooted trees. Arkansas Online, 28 Nov. 2025 As if lying there playing dead while gradient coils conjure an otherworldly racket that best mimics a mashup of jackhammers and Philip Glass were an admirable skill. Lucinda Rosenfeld, New Yorker, 25 Oct. 2025 Workers will be making a ton of noise with a jackhammer or other loud equipment. Brandee Gruener, Southern Living, 15 Oct. 2025 The country's National Disaster Mitigation Agency told AP that rescue teams were using heavy excavators equipped with jackhammers and circular saws, as well as their bare hands on occasion, to find the 14 students still missing. Charlotte Phillipp, PEOPLE, 6 Oct. 2025 See All Example Sentences for jackhammer

Word History

First Known Use

1912, in the meaning defined at sense 1

Time Traveler
The first known use of jackhammer was in 1912

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Cite this Entry

“Jackhammer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/jackhammer. Accessed 2 Dec. 2025.

Kids Definition

jackhammer

noun
jack·​ham·​mer ˈjak-ˌham-ər How to pronounce jackhammer (audio)
: a tool driven by compressed air that is used for drilling or breaking up hard substances (as rock or pavement) by a repeated pounding action

More from Merriam-Webster on jackhammer

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