家内は

my wife

→ 家内
phrase Rare #36,017
my wife 家内 is traditionally used by men to refer to their own wife and can sound old-fashioned. は marks her as the topic of the sentence.
JA: 家内はコーヒーが好きです。
EN: My wife likes coffee.

家内は医師です。

My wife is a doctor.

家内は海外旅行中で、よく電話をかけてくる。

My wife is traveling abroad and often calls me.

家内は今、夕食の支度をしている。

My wife is preparing dinner right now.

家内は気の毒な女でね

My wife is a poor thing, you know.

— フォーリング・ダウン (1993)

家内はアップルパイが大好きなんだ。

My wife absolutely loves apple pie.