おいこ 甥っ子 LinksSentence search for 甥っ子Sentence search for おいっこSentence search for 甥っこSentence search for 甥子Sentence search for おいごKanji details for 甥 and 子Edit in JMdict Noun1. nephewOther forms甥っこ 【おいっこ】、甥子 【おいっこ】、甥子 【おいご】 Discussions Log in to talk about this word.