enthusiast
/ənˈθuziˌɪst/ noun B1- A person filled with or guided by enthusiasm.
Plural enthusiasts
From the library
He is a little queer in his ideas—an enthusiast in some branches of science.
“You are an enthusiast in your line of thought, I perceive, sir, as I am in mine,” said he.
Never was there such a single-minded enthusiast as he!
Dave, a fitness enthusiast, answered the door while wiping sweat from his forehead.
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