borderland
border|land /b'ɔːrdərlænd/ (borderlands)
1 [N-SING] usu with supp
The borderland between two things is an area which contains features from both of these things so that it is not possible to say that it belongs to one or the other.
...on the borderland between sleep and waking.
2 [N-COUNT] usu pl
The area of land close to the border between two countries or major areas can be called the borderlands.
...Lebanon's southern borderlands.
1 [N-SING] usu with supp
The borderland between two things is an area which contains features from both of these things so that it is not possible to say that it belongs to one or the other.
...on the borderland between sleep and waking.
2 [N-COUNT] usu pl
The area of land close to the border between two countries or major areas can be called the borderlands.
...Lebanon's southern borderlands.