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Definition of antivirus
antivirus
/ˌæn.tiˈvaɪ.rəs/
an · ti · vi · rus
Plural:antiviruses
•Adjective:antiviral
antivirus Lexical Profile
CEFR
B1
Grade
6
Tier
2
Usage
Top 10k
Syllables
4
antivirus Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Designed to detect, prevent, and remove malicious software, such as computer viruses, from a computer system.
Example
"The IT department installed a new antivirus program on all company laptops."
Synonyms
View all synonyms for antivirus• noun
1
A software program designed to protect a computer or network by detecting, preventing, and removing computer viruses and other malicious software.
Example
"You should update your antivirus regularly to keep your personal data secure."
Synonyms
View all synonyms for antivirus Antonyms
View all antonyms for antivirusWord Nuance & Usage
"Antivirus" is used primarily in computing to describe software that protects against malicious code, whereas "antiviral" is used in medicine and biology for drugs or treatments targeting biological viruses.
• Rhymes for antivirus
Cite this Entry
Wordmom. (2026). Definition of Antivirus. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/antivirus