琉球弧 りゅうきゅうこ Meanings Noun Ryukyu archipelago See also: 琉球諸島 (りゅうきゅうしょとう). Kanji 琉 precious stone; gem; lapis lazuli. Read as リュウ. 球 ball. Read as キュウ. 弧 arc. Read as コ. Jinuma: Japanese Dictionary · Word lists