Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun enthusiast
2 senses of enthusiast
Sense 1
enthusiast, partisan, partizan -- (an ardent and enthusiastic supporter of some person or activity)
=> supporter, protagonist, champion, admirer, booster, friend -- (a person who backs a politician or a team etc.; "all their supporters came out for the game"; "they are friends of the library")
Sense 2
fancier, enthusiast -- (a person having a strong liking for something)
=> admirer, adorer -- (someone who admires a young woman; "she had many admirers")