meaning of hierarchy
1. Dominion or authority in sacred things.
2. A body of officials disposed organically in ranks and orders each subordinate to the one above it; a body of ecclesiastical rulers.
3. A form of government administered in the church by patriarchs, metropolitans, archbishops, bishops, and, in an inferior degree, by priests.
4. A rank or order of holy beings.
5. the organization of people at different ranks in an administrative body