- 1[countable, uncountable] a system, especially in a society or an organization, in which people are organized into different levels of importance from highest to lowest the social/political hierarchy She's quite high up in the management hierarchy.
- 2[countable] the group of people in control of a large organization or institution
- 3[countable] (formal) a system that ideas or beliefs can be arranged into a hierarchy of needs
Check pronunciation: hierarchy