jack·​ham·​mer ˈjak-ˌha-mər How to pronounce jackhammer (audio)
: a pneumatically operated percussive rock-drilling tool usually held in the hands
: 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 The affliction is common to loggers and construction workers who use chainsaws and jackhammers for a living. David McGrath, Chicago Tribune, 6 July 2024 Ayala-Orozco and his colleagues went on to inject mice with millions of melanoma cells and, a week later, billions of molecular jackhammers. Dhruv Khullar, The New Yorker, 13 June 2024 Agents reportedly were using a cadaver dog to search the subdivision and a Courier Journal photographer saw investigators using a jackhammer on the driveway of a home. Rachel Smith, The Courier-Journal, 24 Apr. 2024 In the streams of south-central Myanmar lives a creature that could be easily mistaken for a sentient grain of rice—a grain of rice, that is, with a lot to say and a voice like a jackhammer. Elizabeth Anne Brown, Scientific American, 16 Apr. 2024 See all Example Sentences for jackhammer 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'jackhammer.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1912, in the meaning defined at sense 1

Time Traveler
The first known use of jackhammer was in 1912

Dictionary Entries Near jackhammer

Cite this Entry

“Jackhammer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/jackhammer. Accessed 25 Jul. 2024.

Kids Definition


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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