exhaustion vs exhaust

exhaustion and exhaust both are nouns.

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

exhaustion (noun)	exhaust (noun)
the act of exhausting something entirely	system consisting of the parts of an engine through which burned gases or steam are discharged
serious weakening and loss of energy	gases ejected from an engine as waste products
extreme fatigue

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