firewall

This word does not have a syllable breakdown in our dictionary yet, so pronunciation and parts are not shown.

noun. A fireproof (or fire-resistant) wall designed to prevent the spread of fire through a building or a vehicle.

noun. (colloquial) the application of maximum thrust.

noun. (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.