a ruling body of clergy organized into orders or ranks each subordinate to the one above it; especially : the bishops of a province or nation
hierarchy
noun(hi-er-ar-chy)
church government by a hierarchy
hierarchy
noun(hi-er-ar-chy)
a traditional hierarchy of angels ranked from lowest to highest into the following nine orders: angels, archangels, principalities, powers, virtues, dominions, thrones, cherubim, and seraphim