also: りんこく
neighboring country; adjacent country
Refers to a country next to or very near another country, especially one sharing a border or treated as a regional neighbor. Common in news and political contexts.
That country shares borders with two neighboring countries.
Relations with the neighboring country worsened.
This country shares a border with several neighboring countries.
That country suddenly invaded its neighboring country.
Relations with the neighboring country worsened over the territorial dispute.