大八洲 おおやしま Meanings Noun Japan (ancient name appearing in the Kojiki) See also: 大八洲国 (おおやしまぐに). Kanji 大 big. Read as おお. 八 eight 洲 continent; sandbar; island. Read as しま. Words containing 大八洲 大八洲国 (おおやしまぐに) Japan Jinuma: Japanese Dictionary · Word lists