wash up vs exhaust

wash up is not a noun while exhaust is a noun.

Word	Noun	Adjective	Verb	Adverb
wash up	No	No	Yes	No
exhaust	Yes	No	Yes	No

As verbs, wash up and exhaust are synonyms defined as:

Other synonyms of wash up include beat, tucker, tucker out.

wash up (noun)	exhaust (noun)
	system consisting of the parts of an engine through which burned gases or steam are discharged
	gases ejected from an engine as waste products

wash up (verb)	exhaust (verb)
wash one's face and hands	wear out completely
wear out completely	eliminate (a substance)
be carried somewhere by water or as if by water	use up the whole supply of
wash dishes	use up (resources or materials)
carry somewhere (of water or current or waves)	deplete