Meaning of the word "dividing line" in English

What does "dividing line" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

dividing line

US /ˈdɪˌvaɪdɪŋ laɪn/
UK /ˈdɪˌvaɪdɪŋ laɪn/

Noun

a real or imaginary line that separates two areas, groups, or things

Example:
The river forms a natural dividing line between the two countries.
There's a clear dividing line between right and wrong.