exhaust vs exhaust pipe

exhaust and exhaust pipe both are nouns.

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

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

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