muffler vs exhaust

muffler and exhaust both are nouns.

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

muffler (noun)	exhaust (noun)
a scarf worn around the neck	system consisting of the parts of an engine through which burned gases or steam are discharged
a tubular acoustic device inserted in the exhaust system that is designed to reduce noise	gases ejected from an engine as waste products
a device that decreases the amplitude of electronic, mechanical, acoustical, or aerodynamic oscillations

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