adjective

territorial

tair-ih-TOR-ee-ul/ˌterəˈtɔːriəl/

Concerned with a bounded area of land.

The map's territorial boundary separates adjoining regions across hills and a river.

A simplified physical relief map shows two adjoining land territories, distinguished by restrained colors and separated by a clear boundary that continues across hills and a river.
Etymology

Latin territorium denoted a district or domain around a town. Territorial therefore concerns land as a defined area, especially one under someone's jurisdiction or defended against others.

In context

United States Institute of Peace42:32
to stake a territorial claim over a submerged feature land feature which doesn't offer any any territorial claim because it is submerged
China's Roles in the World

More examples

  • Fishing boats must stay within the country's territorial waters.
  • Our cat becomes territorial when other cats enter the yard.
  • She gets territorial about her favorite seat on the couch.

Forms

territory noun — An area controlled by someone or something.

territoriality noun — The tendency to claim and defend an area.

Similar words

regional
Regional concerns a region without necessarily implying ownership or control.
possessive
Possessive emphasizes controlling belongings or people rather than defending land.