classify vs compare

classify is not a noun while compare is a noun.

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

classify (noun)	compare (noun)
	qualities that are comparable

classify (verb)	compare (verb)
arrange or order by classes or categories	examine and note the similarities or differences of
assign to a class or kind	consider or describe as similar, equal, or analogous
declare unavailable, as for security reasons	to form the comparative or superlative form on an adjective or adverb
	be comparable