Definitions
There are 2 meanings of the phrase
High Priest.
High Priest - as a noun
A preeminent authority or major proponent of a movement or doctrine
Example: "He's the high priest of contemporary jazz"
Example Sentences
"The high priest led the religious ceremony."
"According to tradition, only the high priest could enter the inner sanctum of the temple."
"The high priest wore elaborate robes during the sacred rituals."
"The role of the high priest was passed down from generation to generation."
"The high priest conducted the purification rites."