元となった辞書の項目
妹背
noun
(archaic, collective) sister(s) and brother(s) / (archaic, collective) Synonym of 夫婦 (fūfu, “married couple”)
意味（1）
(archaic, collective) sister(s) and brother(s)
意味（2）
(archaic, collective) Synonym of 夫婦 (fūfu, “married couple”)
