C1 adjective Neutral

antivirus

/ˌæntiˈvaɪrəs/

Relating to software or protocols designed to detect, prevent, and remove malicious software from a computer system. It describes defensive measures taken to protect digital environments from infections like viruses, worms, and Trojans.

Examples

3 of 5
1

I need to renew my antivirus subscription before it expires next week.

I must pay for my computer protection service again before the current period ends.

2

The organization implemented a robust antivirus policy to safeguard sensitive client data.

The company established strong security rules to protect private customer information.

3

Don't open that email attachment without running your antivirus first.

Check that file with your security software before you open it.

Word Family

Noun
antivirus
Verb
null
Adverb
null
Adjective
antivirus
Related
virus
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Memory Tip

Think of 'Anti' (against) + 'Virus' (digital sickness). It is the digital vaccine and medicine for your computer hardware.

Quick Quiz

The system was compromised because the ____ definitions had not been updated for several months.

Correct!

The correct answer is: antivirus

Examples

1

I need to renew my antivirus subscription before it expires next week.

everyday

I must pay for my computer protection service again before the current period ends.

2

The organization implemented a robust antivirus policy to safeguard sensitive client data.

formal

The company established strong security rules to protect private customer information.

3

Don't open that email attachment without running your antivirus first.

informal

Check that file with your security software before you open it.

4

Heuristic-based antivirus systems offer superior protection against zero-day exploits compared to signature-based models.

academic

Logic-based security tools protect better against new threats than tools that only look for known patterns.

5

The IT department reported that the antivirus software successfully neutralized the incoming threat.

business

The technical team said the security program stopped the digital attack.

Word Family

Noun
antivirus
Verb
null
Adverb
null
Adjective
antivirus
Related
virus

Common Collocations

antivirus software a program that protects computers from viruses
antivirus protection the state of being defended by security software
antivirus scan the process of searching for malicious files
antivirus definitions the database updates used to recognize new viruses
antivirus solution a comprehensive security package for a system

Common Phrases

run an antivirus scan

to initiate a search for malware on a device

update antivirus signatures

to download the latest threat detection data

antivirus shield

the real-time protection component of a security program

Often Confused With

antivirus vs firewall

A firewall filters network traffic to block unauthorized access, while antivirus software scans and removes malicious files already on the system.

📝

Usage Notes

While 'antivirus' is technically an adjective, it is very commonly used as a noun in casual conversation to refer to the software itself. At the C1 level, distinguish between signature-based and heuristic-based antivirus methods.

⚠️

Common Mistakes

Learners often treat 'antivirus' as a countable noun without an article; it is better to say 'an antivirus program' or 'antivirus software'.

💡

Memory Tip

Think of 'Anti' (against) + 'Virus' (digital sickness). It is the digital vaccine and medicine for your computer hardware.

📖

Word Origin

Derived from the Greek 'anti-' (against) and the Latin 'virus' (poison), adapted into computing in the late 1980s as computer viruses became a known threat.

Grammar Patterns

Usually functions as an attributive adjective modifying nouns like 'software', 'program', or 'protection'. Can be used as a mass noun when referring to the technology category.
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Cultural Context

In modern digital culture, having an 'antivirus' is considered a basic necessity of 'digital hygiene' for both individuals and corporations.

Quick Quiz

The system was compromised because the ____ definitions had not been updated for several months.

Correct!

The correct answer is: antivirus

Related Words

annul

C1

To officially declare a legal agreement, decision, or marriage invalid and void, treating it as if it never existed. It is primarily used in legal and formal contexts to revoke the legitimacy of an act or contract.

anomaly

C1

An anomaly is something that deviates from what is standard, normal, or expected. It is frequently used in scientific, technical, or statistical contexts to describe a data point or occurrence that does not fit an established pattern.

antagonist

C1

To act in opposition to someone or something, or to provoke hostility and anger through specific actions or behavior. It involves intentionally or unintentionally creating an adversary or causing someone to become unfriendly.

anthology

C1

A published collection of poems, short stories, or other pieces of writing, often from different authors. It can also refer to a collection of musical works or films that share a common theme or style.

antipathy

C1

A deep-seated feeling of dislike, aversion, or hostility toward someone or something. It often describes an instinctive or long-standing emotional opposition rather than a temporary annoyance.

antithesis

C1

The antithesis is a person or thing that is the direct or polar opposite of someone or something else. It also refers to a rhetorical device where two contrasting ideas are placed together in a balanced grammatical structure to achieve a contrasting effect.

amalgamate

C1

To combine or unite multiple components, organizations, or ideas into a single, integrated whole. It describes a process where the original parts merge to form a larger, unified entity.

ameliorate

C1

To make something bad or unsatisfactory better, more tolerable, or more effective. It is frequently used in formal contexts to describe improving social conditions, medical symptoms, or structural problems.

amenable

C1

Amenable describes a person who is willing to accept or be influenced by a suggestion, or a situation/thing that is capable of being acted upon in a particular way. It implies a cooperative attitude or a susceptibility to a specific process, authority, or treatment.

anxious

C1

A state of feeling worried, nervous, or uneasy about an imminent event or something with an uncertain outcome. It can also describe a strong desire or eagerness to do something, often accompanied by a sense of tension.

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