Hierarchy refers to a system or organization where people or things are ranked in order of importance or authority. It shows who is in charge or who holds a higher position compared to others. Full definition
Actually, what I think I'm doing is trying to make culture, but it occurs to me that there's a kind of hierarchy of needs operating here. (firstthings.com)
If you want your dog to become an acceptable member of the family, he must be last in hierarchy of social order. (k9magazine.com)
The exquisite social hierarchy of insect colonies has long fascinated scientists. (sciencedaily.com)