aficionado vs fan

aficionado and fan both are nouns.

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

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

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

Other hypernyms of aficionado include buff, devotee, lover.

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

Other hypernyms of aficionado include rooter, sports fan.

aficionado (noun)	fan (noun)
a serious devotee of some particular music genre or musical performer	a device for creating a current of air by movement of a surface or surfaces
a fan of bull fighting	an ardent follower and admirer
	an enthusiastic devotee of sports

aficionado (verb)	fan (verb)
	make (an emotion) fiercer
	blow away or off with a current of air
	strike out (a batter), (of a pitcher)
	agitate the air