開かい港こう場じょう

noun

open port; treaty port

Historical term for a port opened to foreign trade, especially under 19th-century treaties. In modern contexts, it can refer to any port open to international commerce.

• 横よこ浜はまは1859年ねんに開かい港こう場じょうとなった。

  Yokohama became a treaty port in 1859.

• この地ち域いきにはいくつかの開かい港こう場じょうがある。