1.
neighboring country; adjacent nation
A country that shares a border or is geographically close. Used in both literal and diplomatic contexts.
隣国との関係は重要だ。
Relations with neighboring countries are important.
隣国から多くの観光客が訪れる。
Many tourists visit from neighboring countries.
隣国との貿易協定が締結された。
A trade agreement with the neighboring country was concluded.
隣国 means neighboring country. Composed of 隣 (adjacent) + 国 (country). A somewhat formal, written-style word.
COMMON COLLOCATIONS:
- 隣国との関係: relations with a neighboring country
- 隣国との貿易: trade with a neighboring country
- 隣国との国境: border with a neighboring country
REGISTER:
Used mainly in news, diplomacy, and formal writing. In everyday conversation, 隣の国 is more natural.
CONTEXT:
For Japan, 隣国 typically refers to 韓国 (South Korea), 中国 (China), and ロシア (Russia).