Nihoner

“Brother-in-law” in Japanese

Short answer
小舅 kojuuto こじゅーと

Brother-in-law in Japanese is “小舅” (kojuuto). Full meaning: brother-in-law.

Other ways to say “Brother-in-law” in Japanese

義兄 gikei brother-in-law (spouse's older brother or older sister's husband); older stepbrother 義弟 gitei brother-in-law (spouse's younger brother or younger sister's husband); younger stepbrother 相婿 aimuko brother-in-law 義兄弟 gikyoudai brother-in-law, stepbrother, sworn brother 弟 tei younger brother, little brother, kid brother; brother-in-law (spouse's younger brother or younger sister's husband) 弟妹 otouto younger brother, little brother, kid brother; brother-in-law (spouse's younger brother or younger sister's husband) おとうと otouto younger brother, little brother, kid brother; brother-in-law (spouse's younger brother or younger sister's husband) をとうと otouto younger brother, little brother, kid brother; brother-in-law (spouse's younger brother or younger sister's husband)

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