Zealot Synonyms: enthusiast, fanatic
Zealot Sentence: My aunt is a health zealot and she is hell bent on making me quit smoking.
Under The Lens: Zealot various meanings
Zealotry was a radical and warlike political movement of Jews in Judea. Prominent between A.D. 69 and A.D. 81, it advocated Jews to rebel against the Roman Empire and expel it from the Holy Land by force of arms. The word Zealot (Z capital) is used to refer to a member of this group.
Zealot may refer to a person who shows excessive enthusiasm for a cause, person or an object. Stretching this meaning it may also refer to a person who is a fanatic.