wear vs wash up

wear is a noun but wash up is not a noun.

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

As verbs, wash up is a hyponym of wear; that is, wash up is a word with a more specific, narrower meaning than wear:

Other hyponyms of wear include beat, exhaust, tucker, tucker out, overfatigue, overtire, overweary.

wear (noun)	wash up (noun)
the act of having on your person as a covering or adornment
a covering designed to be worn on a person's body
impairment resulting from long use

wear (verb)	wash up (verb)
be dressed in	wash one's face and hands
put clothing on one's body	wear out completely
have or show an appearance of	be carried somewhere by water or as if by water
exhaust or get tired through overuse or great strain or stress	wash dishes
have on one's person	carry somewhere (of water or current or waves)
deteriorate through use or stress
go to pieces
last and be usable
have in one's aspect; wear an expression of one's attitude or personality