friendly relations; friendship
Used for amicable ties between individuals, groups, or nations. Often appears with verbs like 築く (build), 結ぶ (form), or 保つ (maintain).
The two countries have built friendly relations over many years.
隣人との友好関係を保つことは大切だ。
It is important to maintain friendly relations with your neighbors.
The two countries have built friendly relations over many years.
The two cities formed friendly relations as sister cities.
Both governments continue efforts to maintain friendly relations with their neighboring country.
Friendly relations between the two countries deepened as trade expanded.
友好 is the abstract concept of amity or goodwill, while 友好関係 names the actual relationship or ties that embody it.
親善 stresses active goodwill and mutual understanding (as in 親善大使), whereas 友好関係 is the broader, more neutral term for the friendly ties themselves.
親交 refers to a close personal friendship between individuals, while 友好関係 is used more broadly, including between groups or nations.
敵対関係 describes hostile or antagonistic relations, the direct opposite of the amicable ties named by 友好関係.
友情 refers to the personal feeling of friendship between individuals, while 友好関係 refers to formal or collective friendly ties, often between organizations or countries.
Compound of 友好 (friendship) + 関係 (relations). The exact historical derivation is uncertain, but the word follows standard Sino-Japanese compounding patterns.