hierarchy
US /ˈhaɪ.rɑːr.ki/
UK /ˈhaɪ.rɑːr.ki/

1.
hiérarchie, échelle
a system or organization in which people or groups are ranked one above the other according to status or authority
:
•
The company has a strict management hierarchy.
L'entreprise a une hiérarchie de gestion stricte.
•
He is at the top of the social hierarchy.
Il est au sommet de la hiérarchie sociale.