貝合わせ かいあわせ Also written 貝合せ Meanings Noun kai-awase (i.e.: Heian-period shell-matching game) kai-awase (i.e.: Heian-period shell comparison game) See also: 物合わせ (ものあわせ). tribadism; tribbing Kanji 貝 shellfish. Read as かい. 合 fit. Read as あわせる. Jinuma: Japanese Dictionary · Word lists