Firewalls Meaning in English
word · lemma: firewall
Definition
Firewalls are security systems—either software or hardware—that control and protect the flow of network traffic between computers and networks, blocking threats and unauthorized access.
Usage & Nuances
Used mainly in IT and cybersecurity contexts. Most often seen in the plural as "firewalls" when referring to multiple devices or protections. Common combinations: "install firewalls," "configure firewalls." Do not confuse with the physical wall that prevents the spread of fire (rare outside IT).
Example Sentences
Most companies use firewalls to protect their data.
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Our school installed new firewalls last week.
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Firewalls help block dangerous websites.
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If you want extra security, you need to set up multiple firewalls.
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Sometimes, firewalls can block sites you actually need to visit.
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Their IT team upgraded all the old firewalls over the weekend.
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