いとこ 従姉妹 Common word JLPT N2 LinksSentence search for 従姉妹Sentence search for いとこSentence search for じゅうしまいKanji details for 従, 姉 and 妹Edit in JMdict Noun1. cousin (female)Usually written using kana alone, See also 従兄弟Other forms従姉妹 【じゅうしまい】Notesいとこ: Gikun (meaning as reading) or jukujikun (special kanji reading). Discussions Log in to talk about this word.