freak vs enthusiast

freak and enthusiast both are nouns.

Word	Noun	Adjective	Verb	Adverb
freak	Yes	No	Yes	No
enthusiast	Yes	No	No	No

As nouns, enthusiast is a hypernym of freak; that is, enthusiast is a word with a broader meaning than freak:

freak: someone who is so ardently devoted to something that it resembles an addiction
enthusiast: an ardent and enthusiastic supporter of some person or activity

Other hypernyms of freak include partisan, partizan.

freak (noun)	enthusiast (noun)
a person or animal that is markedly unusual or deformed	an ardent and enthusiastic supporter of some person or activity
someone who is so ardently devoted to something that it resembles an addiction	a person having a strong liking for something

freak (verb)	enthusiast (verb)
lose one's nerve