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Overview of noun firewall

The noun firewall has 3 senses


  • firewall -- ((colloquial) the application of maximum thrust; "he moved the throttle to the firewall")

  • firewall -- ((computing) a security system consisting of a combination of hardware and software that limits the exposure of a computer or computer network to attack from crackers; commonly used on local area networks that are connected to the internet)

  • firewall -- (a fireproof (or fire-resistant) wall designed to prevent the spread of fire through a building or a vehicle)