exhaust pipe vs exhaust

exhaust pipe and exhaust both are nouns.

Word	Noun	Adjective	Verb	Adverb
exhaust pipe	Yes	No	No	No
exhaust	Yes	No	Yes	No

exhaust pipe (noun)	exhaust (noun)
a pipe through which burned gases travel from the exhaust manifold to the muffler	system consisting of the parts of an engine through which burned gases or steam are discharged
	gases ejected from an engine as waste products

exhaust pipe (verb)	exhaust (verb)
	wear out completely
	eliminate (a substance)
	use up the whole supply of
	use up (resources or materials)
	deplete