Territory is land which is controlled by a particular country or ruler.

A territory is a country or region that is controlled by another country.

You can use territory to refer to an area of knowledge or experience.

An animal's territory is an area which it regards as its own and which it defends when other animals try to enter it.

Territory is land with a particular character.

If you say that something comes with the territory, you mean that you accept it as a natural result of the situation you are in.