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antivirus

British  
/ ˈæntɪˌvaɪrəs /

noun

  1. (modifier) a piece of software designed to prevent viruses entering a computer system or network

    antivirus software

  2. (modifier) of or relating to such a piece of software

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Last November, Google’s Threat Intelligence Group published a report showing that bad actors are deploying AI-enhanced malware with the capability to rewrite its source code midexecution to avoid antivirus software.

From MarketWatch • Apr. 18, 2026

Its unlimited device support and bundled extras, including antivirus, data breach alerts and a private search engine, make it a cost-effective all-in-one solution.

From Salon • Mar. 27, 2026

Set up automatic transfers into bank accounts, use password managers to access your online accounts and boost your computer data security with antivirus software and other precautionary steps.

From MarketWatch • Mar. 26, 2026

The Surfshark One plan at $2.29/month adds antivirus and data breach alerts, while Surfshark One+ at $3.99/month includes the Incogni data removal service.

From Salon • Feb. 11, 2026

The antivirus directory has anti-virus programs for MS- DOS and Macintosh computers.

From Big Dummy's Guide to the Internet by Electronic Frontier Foundation

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