1) первосвященник, верховный жрец 2) корифей; ведущий деятель, глашатай (доктрины, движения)
noun 1. a chief priest especially of the ancient Jewish Levitical priesthood traditionally traced from Aaron 2. a priest of the Melchizedek priesthood in the Mormon Church 3. the head of a movement or chief exponent of a doctrine or an art • high priesthood noun