Definitions for "Pontiff"
One of the sacred college, in ancient Rome, which had the supreme jurisdiction over all matters of religion, at the head of which was the Pontifex Maximus.
The pope.
Also Holy See, Pope, Holy Father. The head of the Roman Catholic Religion founded by Christ under St. Peter
A high priest.
The chief priest.
a priest of the gods and member of the college of pontiffs whose primary functions was to carry out sacrifices to the gods. A pontiff was considered to be in a position of distinction and therefore took precedence before all other magistrates. The often wore a veil (tutulus), pointed cap (apex) and carried a staff (simpulum). The positions of pontiff, which numbered fifteen, were filled by the highest members of society which included members of the imperial family.