hierarchy

noun

1. A body of authoritative officials organized in nested ranks.

   “Gay men and bisexuals were blamed for the [AIDS] epidemic for much the same reason that the church hierarchy in the Middle Ages accused Jewish people of creating bubonic plague by "poisoning the wells."”

   “The [Washington] Post's proprietor through those turbulent [Watergate] days, Katharine Graham, held a double place in Washington’s hierarchy: at once regal Georgetown hostess and scrappy newshound, ready to hold the establishment to account.”

2. A social, religious, economic or political system or organization in which people or groups of people are ranked with some superior to others based on their status, authority or some other trait.

   “Social defeat arises in strict social hierarchies in which the few dominate the many. Overcrowding exacerbates the many ills of social defeat within these social hierarchies based on dominance.”

3. Any group of objects ranked so that every one but the topmost is subordinate to a specified one above it.

   “... the surviving portions provide enough detail to outline its principal features: the hierarchy of beings to whom his liturgy was to be addressed (we previously considered Plethon's hierarchy of gods in our examination of his Summary[…]”