firewall vs colloquialism

firewall and colloquialism both are nouns.

Word	Noun	Adjective	Verb	Adverb
firewall	Yes	No	No	No
colloquialism	Yes	No	No	No

firewall (noun)	colloquialism (noun)
(colloquial) the application of maximum thrust	a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech
a fireproof (or fire-resistant) wall designed to prevent the spread of fire through a building or a vehicle
(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