A hierarchy is an arrangement of items that are represented as being "above", "below", or "at the same level as" one another.

What does hierarchy mean in simple words?

: a group that controls an organization and is divided into different levels. : a system in which people or things are placed in a series of levels with different importance or status.

What is an example of a hierarchy?

The definition of hierarchy is a group of people or things arranged in order of rank or the people that rank at the top of such a system. An example of hierarchy is the corporate ladder. An example of hierarchy is the various levels of priests in the Catholic church.