|Origin:||ierarchie, from Latin, from Greek hierarches, from hieros 'holy' + -arches 'ruler' (from archein 'to rule')|
1 [uncountable and countable]SS
a system of organization in which people or things are divided into levels of importance:
a rigid social hierarchy
She worked her way up through the corporate hierarchy to become president.
the most important and powerful members of an organization:
the church hierarchy