wear vs slip on

wear is a noun but slip on is not a noun.

Word	Noun	Adjective	Verb	Adverb
wear	Yes	No	Yes	No
slip on	No	No	Yes	No

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

Other hyponyms of wear include hat, try, try on, scarf.

wear (noun)	slip on (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)	slip on (verb)
be dressed in	put on with ease or speed
put clothing on one's body
have or show an appearance of
exhaust or get tired through overuse or great strain or stress
have on one's person
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