分ぶん断だん線せん

noun

dividing line; demarcation line

Refers to a line that separates or divides, often used in political, geographical, or conceptual contexts.

• その川かわが二ふたつの国くにの分ぶん断だん線せんになっている。

  The river serves as the dividing line between the two countries.

• 議ぎ論ろんの中なかで、意い見けんの分ぶん断だん線せんがはっきりした。

  In the discussion, the line of division in opinions became clear.