noun
- computer security systems that monitor and control incoming and outgoing network traffic
- fire-resistant walls or barriers designed to prevent the spread of fire
Usage: computing
Usage: construction; safety
Examples
- The company installed new firewalls to protect against cyber attacks.
- Corporate firewalls often block access to social media sites.
- Building codes require firewalls between apartment units.
- The garage has firewalls separating it from the main house.
- Network administrators regularly update their firewalls.
- Firewalls in the theater prevented the backstage fire from spreading.
- Many home routers include built-in firewalls for basic protection.