classify vs sort out

classify and sort out both are verbs.

Word	Noun	Adjective	Verb	Adverb
classify	No	No	Yes	No
sort out	No	No	Yes	No

As verbs, classify and sort out are synonyms defined as:

Other synonyms of classify include assort, class, separate, sort.

classify (verb)	sort out (verb)
arrange or order by classes or categories	arrange or order by classes or categories
assign to a class or kind	make free from confusion or ambiguity; make clear
declare unavailable, as for security reasons	punish in order to gain control or enforce obedience