stereotype vs classify

stereotype is a noun but classify is not a noun.

Word	Noun	Adjective	Verb	Adverb
stereotype	Yes	No	Yes	No
classify	No	No	Yes	No

As verbs, classify is a hypernym of stereotype; that is, classify is a word with a broader meaning than stereotype:

Other hypernyms of stereotype include assort, class, separate, sort, sort out.

stereotype (noun)	classify (noun)
a conventional or formulaic conception or image

stereotype (verb)	classify (verb)
treat or classify according to a mental stereotype	arrange or order by classes or categories
	assign to a class or kind
	declare unavailable, as for security reasons