Vocabulary What does 娘婿 (むすめむこ, musumemuko) mean? 娘婿 (むすめむこ, musumemuko) means son-in-law. Quick factsReadingむすめむこRomajimusumemukoPart of speechnoun 娘婿むすめむこmusumemukoson-in-law1noun son-in-lawKanji in this word娘daughter; girl婿son-in-law; bridegroom