개항이 · 개항을
opening of ports (to foreign trade); opening of a port or airport
Example
조선은 1876년 강화도 조약으로 개항을 하게 되었어요.
Joseon opened its ports in 1876 through the Treaty of Ganghwa.
Word parts
개 open+항 port
Literally 'opening ports'.
Good to know
Today it is also used for a new airport opening, e.g. 인천공항 개항.
Related words