› a system in which the people within a company or organization are organized into levels according to the authority they have: Every organization has a hierarchy, and trying to understand that, and the systems and processes of the organization, is important.corporate/management/organizational/political, etc. hierachyMany kinds of work are more easily and cheaply managed in corporate hierarchies than by individuals doing deals in the market.
› the people in the upper levels of a company or organization who control it: When the recommendations had been submitted and approved by the hierarchy, teams were established to manage the process of implementing them. → See alsoMaslow's hierarchy of needs