1.  A border is a dividing line Marking an abrupt shift between two separate, sometimes antagonistic, entities.

2.  As he points out, N is an important dividing line in statistics generally between large and small samples.

3.  Congenital syphilis is arbitrarily divided into early and late stages with the dividing line at two years of age.

4.  He admitted drawing the dividing line will be hard.

5.  In fact, the dividing lines were often difficult to draw between those formally described as sick and those described as early-retired.

6.  In the early days of archaeology, the dividing line between archaeologists and treasure hunters was all but invisible.

7.  It serves, in the gospel of Mark as a kind of water shed, a dividing line in his gospel.

8.  One must insist on this clear dividing line between the two stages of writing.

9.  The crucial dividing line therefore is between this general advice and participation in management.

10.  The dividing line between acceptable and anti-social behaviour was often blurred.