opening a port (seaport, airport, etc.); starting operations at a port
opening a port to foreign vessels or trade
横浜は幕末に開港された歴史がある。
Yokohama has a history of being opened as a port at the end of the Edo period.
新空港が来月開港する予定だ。
The new airport is scheduled to open next month.
開港以来多くの外国人が訪れるようになった。
Since the port opened, many foreigners have come to visit.