開港

1. Origins, structure, and basic meaning

• Structure: 開港 is a noun read かいこう, meaning the opening of a port for use or traffic. It forms the verb 開港する.
• Basic usage: It can mark port opening as the start of local development or state when a new port is scheduled to open.
  • 資料館で港の開港から町が発展した経緯を学んだ。 describes learning how the town developed from the opening of the port; 新しい港は春に開港する予定だ。 says that the new port is scheduled to open in spring.

2. Common pitfalls and similar expressions

• 開港から発展する
  • から marks the port opening as the starting point in the account of the town's development.
• 開港する予定だ
  • 予定だ presents the spring opening as a plan, not an event that has already occurred.
• 開港 and 開業
  • 開港 opens a port for use, while 開業 begins the operation of a business or facility.