The kanji 島島 primarily represents an "island" or a piece of land surrounded by water. It conveys the idea of an isolated landmass separated from a larger continent or land area. It emphasizes the separation and distinctness of this land formation.

・On-yomi (音読み): とう (tō) ・Kun-yomi (訓読み): しま (shima)

⚫︎ 島国（しまぐに） Translation: island nation ⚫︎ 竹島（たけしま） Translation: Takeshima (Dokdo/Liancourt Rocks) ⚫︎ 島民（とうみん） Translation: islanders

The kanji 島島 is a phono-semantic compound (形声文字, けいせいもじ). It is composed of two parts: The left side, 山 (山, yama), means "mountain" or "land" (often representing a high point). The right side, 鳥 (鳥, tori), originally depicting a bird, is now used phonetically to indicate the sound. Therefore, 島島 originally depicted a "mountain" surrounded by water, where "bird" contributes to the sound. The presence of 山 (mountain) implies that an 島島 generally has some elevation above sea level, even if slight.