The definition of an enthusiast is a person who is very excited about some person or thing.(noun)
A person who is really into wine and who really loves talking about wine is an example of a wine enthusiast.
See enthusiast in Webster's New World College Dictionary
Origin: Gr enthousiastēs
See enthusiast in American Heritage Dictionary 4
Origin: Greek enthousiastēs, possessed person
Origin: , from enthousiazein, to be inspired; see enthusiasm.
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