fangirl vs devotee

fangirl and devotee both are nouns.

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

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

fangirl: A female fan who is obsessive about a particular subject (especially, someone or something in popular entertainment media)
devotee: an ardent follower and admirer

Other hypernyms of fangirl include female, female person, buff, fan, lover.

fangirl (noun)	devotee (noun)
A female fan who is obsessive about a particular subject (especially, someone or something in popular entertainment media)	an ardent follower and admirer

fangirl (verb)	devotee (verb)
to be a extreme female fan of something