memorizer vs learner

memorizer and learner both are nouns.

Word	Noun	Adjective	Verb	Adverb
memorizer	Yes	No	No	No
learner	Yes	No	No	No

As nouns, learner is a hypernym of memorizer; that is, learner is a word with a broader meaning than memorizer:

memorizer: a person who learns by rote
learner: someone (especially a child) who learns (as from a teacher) or takes up knowledge or beliefs

Other hypernyms of memorizer include assimilator, scholar, student.

memorizer (noun)	learner (noun)
a person who learns by rote	someone (especially a child) who learns (as from a teacher) or takes up knowledge or beliefs
	works for an expert to learn a trade