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firewall

 
Noun firewall has 3 senses
  1. firewall - the application of maximum thrust; "he slammed the throttle to the firewall"
    --1 is a kind of
    drive, thrust, driving force
  2. 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
    --2 is a kind of
    security system
  3. firewall - fireproof (or fire-resistant) wall designed to prevent the spread of fire through a building or a vehicle
    --3 is a kind of
    wall
fires fireside firestation firestone firestorm firestream firethorn firetrap firewall firewater fireweed firewheel tree firewire firewood firework fireworks firey

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