離島（りとう、ritou）
- isolated island

The Japanese word 離島, pronounced りとう (ritou), means "remote island" or "isolated island." It refers to an island that is far from the mainland or another major island and is often difficult to access. It emphasizes the isolation and distance of the island. The word conveys the idea of an island being separate from the main population center.

⚫︎その島は離島なので、アクセスが不便です。 Translation: That island is a remote island, so access is inconvenient. ⚫︎夏休みは離島へ旅行に行きたいです。 Translation: I want to go on a trip to a remote island during summer vacation. ⚫︎フェリーで離島へ渡ります。 Translation: I will go to the remote island by ferry.

This word is used to describe islands that are geographically distant from the mainland or other major islands. You would use 離島 when talking about travel to such locations, the unique environment of remote islands, or the challenges of living on them. It’s useful when discussing tourism, geography, or any topic related to islands that are far from the main population centers. You can use it in both formal and informal conversations.

離島 is typically written with the kanji characters 離島. The reading is りとう in hiragana. There are no other common ways to write this word. The okurigana is fixed.

⚫︎孤島(kotou) - "isolated island" ⚫︎島(shima) - "island" (more general term, can also refer to remote islands, depending on context)

There aren't direct antonyms, but you could consider words related to mainland or easily accessible areas.

彼は離島の出身で、小さい頃から自然の中で育ちました。 ・Translation: He is from a remote island, and grew up in nature from a young age. ・Explanation: This sentence describes someone's origin, highlighting their connection to a remote island and its environment.

このプロジェクトは離島の観光開発を目的としています。 ・Translation: This project aims to develop tourism on the remote island. ・Explanation: This sentence explains the purpose of a project, focusing on tourism development on a distant island.

The word 離島 is formed from two kanji: 離(ri), meaning "separate" or "distant," and 島(tou), meaning "island." Together, they literally mean "separated island" or "distant island," accurately reflecting the geographical characteristic of these islands.