aficionado vs devotee

aficionado and devotee both are nouns.

Word	Noun	Adjective	Verb	Adverb
aficionado	Yes	No	No	No
devotee	Yes	No	No	No

As nouns, devotee is a hypernym of aficionado; that is, devotee is a word with a broader meaning than aficionado:

aficionado: a serious devotee of some particular music genre or musical performer
devotee: an ardent follower and admirer

Other hypernyms of aficionado include buff, fan, lover.

aficionado (noun)	devotee (noun)
a serious devotee of some particular music genre or musical performer	an ardent follower and admirer
a fan of bull fighting