|Origin:||territorium 'land around a town', from terra; TERRACE|
land that is owned or controlled by a particular country, ruler, or military force:
government/military[uncountable and countable]PG
Hong Kong became Chinese territory in 1997.
The plane was flying over enemy territory.
land of a particular type
type of land[uncountable]HE
an expedition through previously unexplored territory
the area that an animal, bird etc regards as its own and will defend against other animals:
animal[uncountable and countable]HBA
A tiger has a large territory to defend.
A dog uses urine to mark its territory.
a particular area of experience or knowledge
new or familiar experience[uncountable]
The company is moving into unfamiliar territory with this new software.
Actor Patrick Bergin returns to more familiar territory to play a menacing killer.
an area in a town, country etc that someone is responsible for as part of their job, especially someone whose job is to sell products:
business[uncountable and countable]BB
a sales territory
to be a natural and accepted part of a particular job, situation, place etc:
I'm a cop - getting shot at goes with the territory.
land that belongs to the United States, Canada etc but that is not a state:
land that is not a state[countable]PG
the US territory of Guam