fanboy vs lover

fanboy and lover both are nouns.

Word	Noun	Adjective	Verb	Adverb
fanboy	Yes	No	No	No
lover	Yes	No	No	No

As nouns, lover is a hypernym of fanboy; that is, lover is a word with a broader meaning than fanboy:

fanboy: A male fan who is obsessive about a particular subject (especially, someone or something in popular entertainment media
lover: an ardent follower and admirer

Other hypernyms of fanboy include buff, devotee, fan, adult male, man.

fanboy (noun)	lover (noun)
A male fan who is obsessive about a particular subject (especially, someone or something in popular entertainment media	a person who loves someone or is loved by someone
	an ardent follower and admirer
	a significant other to whom you are not related by marriage