婿(むこ)husband, groom, (one's) son-in-law

娘(むすめ)が結婚(けっこん)をして婿(むこ)を取(と)りました。

My daughter got married and brought a son-in-law into the family.

僕(ぼく)は婿(むこ)になって妻(つま)の家系(かけい)に入(はい)りました。

I became a son-in-law and joined my wife's family line.

婿(むこ)は私(わたし)の娘(むすめ)を一生(いっしょう)大事(だいじ)にしてくれるはずです。

The son-in-law is supposed to cherish my daughter for the rest of his life.

最近(さいきん)は妻(つま)となる女性(じょせい)が婿(むこ)を取(と)る事例(じれい)が増(ふ)えつつあります。

Recently, cases where a woman takes a husband into her family as a son-in-law have been increasing.

祖父(そふ)：「君(きみ)が婿(むこ)だな？いいかい？私(わたし)の孫娘(まごむすめ)をこれから先(さき)ずっと幸(しあわ)せにしたまえ。」

Grandfather: 'You're the groom, right? Listen, please make my granddaughter happy from now on, and forever.'