(こっきょう)

こっきょう
noun
national border, frontier
1. national border, frontier
The boundary line between two countries.
国境(こっきょう)()える
To cross the border.
Tensions are rising near the border.
国境(こっきょう)なき医師(いし)(だん)
Doctors Without Borders (Médecins Sans Frontières).
The internet is said to have no borders, but in reality, each country has its own laws and regulations.

国境(こっきょう) is a national border.

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FAMOUS EXPRESSION:

NOTE: Can also be read くにざかい, but こっきょう is more common.