Noun

• S: (n) high priest (a preeminent authority or major proponent of a movement or doctrine) "he's the high priest of contemporary jazz"
• direct hypernym / inherited hypernym / sister term
• S: (n) authority (an expert whose views are taken as definitive) "he is an authority on corporate law"
• S: (n) adviser, advisor, consultant (an expert who gives advice) "an adviser helped students select their courses"; "the United States sent military advisors to Guatemala"
• S: (n) connoisseur, cognoscente (an expert able to appreciate a field; especially in the fine arts)
• S: (n) evaluator, judge (an authority who is able to estimate worth or quality)
• S: (n) high priest (a preeminent authority or major proponent of a movement or doctrine) "he's the high priest of contemporary jazz"
• S: (n) liturgist (an authority on liturgies)
• S: (n) master, professional (an authority qualified to teach apprentices)
• S: (n) archpriest, hierarch, high priest, prelate, primate (a senior clergyman and dignitary)