limit ***
demarcation
demarcation line

Consider all knowledge to fall above or below a line of demarcation.

But it still has nearly a million troops along the 151-mile demarcation line.

Had he crossed a demarcation line and done the man's job?

The line of demarcation was then more clearly defined than is the case at present.

There was a very clear line of demarcation between good and evil, you see?

The line of demarcation between news and entertainment is no longer there.

The line of demarcation between blue and white on the body is distinct.

She knew it pleased him to have her thus, with no line of demarcation between them.

No real line of demarcation seems exists between the early West and what it has become.

There is a clear demarcation line that must not be crossed.