learner vs beginner

learner and beginner both are nouns.

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

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

Other hypernyms of learner include initiate, novice, tiro, tyro.

learner (noun)	beginner (noun)
someone (especially a child) who learns (as from a teacher) or takes up knowledge or beliefs	someone new to a field or activity
works for an expert to learn a trade	a person who founds or establishes some institution