classify vs assign

classify and assign both are verbs.

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

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

Other hypernyms of classify include attribute.

classify (verb)	assign (verb)
arrange or order by classes or categories	select something or someone for a specific purpose
assign to a class or kind	attribute or credit to
declare unavailable, as for security reasons	decide as to where something belongs in a scheme
	attribute or give
	transfer one's right to
	give out
	make undue claims to having
	give an assignment to (a person) to a post, or assign a task to (a person)