fire wall


Definition of fire wall

1 : a wall constructed to prevent the spread of fire
2 usually firewall \ ˈfī(-​ə)r-​ˌwȯl How to pronounce fire wall (audio) \ : computer hardware or software that prevents unauthorized access to private data (as on a company's local area network or intranet) by outside computer users (as of the Internet)

Examples of fire wall in a Sentence

Recent Examples on the Web The chief said the wooden stick-frame construction also likely helped the fire move quickly, but said the fire wall between the homes did its job and likely accounted for the other family being able to escape without injury. Danielle Camilli, USA TODAY, 27 Dec. 2021 Véra stood as the fire wall between Vladimir Nabokov and Humbert Humbert. Stacy Schiff, The New Yorker, 5 Mar. 2021 Your teammate can cast a fire wall to herd opponents into your lightning death tube. Cecilia D'anastasio, Wired, 16 Sep. 2020 According to the February consent decree with the FCC, TeleQuality in 2015 and 2016 offered rural health care providers free routers and fire walls to induce them to select the company as their broadband provider. Patrick Danner,, 14 May 2020 And virtual private networks, which had long been used to circumvent the fire wall, are becoming increasingly unstable amid Beijing’s crackdown on the tool in recent years. Jane Li, Quartz, 2 Oct. 2019 Yogi was near the fire wall when a tangle of wires fell from above, knocking him off balance. Sean Flynn, Esquire, 9 Mar. 2017 Wahlen said the building at 1214 VFW Parkway is a loss, but a fire wall saved the adjoining building at 1216 VFW Parkway. John Hilliard And Felicia Gans,, 12 May 2018 The wall in question was a fire wall owned by the city, left exposed after a Woolworth building was torn down by the city's Downtown Development Authority to make room for the Festival Square, Eustice said. Bryce Airgood, Detroit Free Press, 6 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fire wall.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of fire wall

circa 1666, in the meaning defined at sense 1

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Time Traveler for fire wall

Time Traveler

The first known use of fire wall was circa 1666

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Dictionary Entries Near fire wall

fire walking

fire wall

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Statistics for fire wall

Last Updated

31 Dec 2021

Cite this Entry

“Fire wall.” Dictionary, Merriam-Webster, Accessed 16 Jan. 2022.

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More Definitions for fire wall

fire wall


English Language Learners Definition of fire wall

: a very thick wall that keeps fire from spreading
: a computer program or piece of equipment that keeps people from using or connecting to a computer or a computer network without permission


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