frontière (Nomen)

1

Abgrenzung (adj n v)

boundary, border of territory, démarcation
2
démarcation
3

Grenze (n)

boundary or limit, boundary, border of territory, dividing line or location between two areas, démarcation, part of a country that fronts or faces another country or an unsettled region, pays, the line or frontier area separating regions
4
démarcation, région