国境

1. Origins, structure, and basic meaning

• Structure: 国境 is read as こっきょう and means “national border”.
• Basic usage: The examples show a red line between fictional countries and a mountain border crossed by a traveler.

2. Common pitfalls and similar expressions

• Distinguishing senses and uses
  • It is the boundary between sovereign states, involving territory and border control rather than an ordinary local administrative line.