しまいあい 姉妹愛 LinksSentence search for 姉妹愛Sentence search for しまいあいSentence search for きょうだいあいKanji details for 姉, 妹 and 愛Edit in JMdict Noun1. sisterly love; affection between sistersOther forms姉妹愛 【きょうだいあい】Notesきょうだいあい: Irregular kana usage. Discussions Log in to talk about this word.