貝覆い かいおおい Also written かいおい, 貝おおい, 貝覆 Meanings Noun kai-awase (i.e.: Heian-period shell-matching game) See also: 貝合わせ (かいあわせ). Kanji 貝 shellfish. Read as かい. 覆 cover. Read as おおう. Jinuma: Japanese Dictionary · Word lists