- 1something that marks the separation between two things or ideas There is no clear dividing line between what is good and what is bad.
- 2a place that separates two areas The river was chosen as a dividing line between the two districts.
dividing line
nounBrE BrE//dɪˈvaɪdɪŋ laɪn//; NAmE NAmE//dɪˈvaɪdɪŋ laɪn//
[usually singular]Check pronunciation: dividing line