Wife (honorific) — a polite term for someone else’s wife; can also refer to one's own wife in casual contexts.
山田さんの奥さんはどんな人ですか？
What kind of person is Mr. Yamada's wife?
うちの奥さんは料理が上手だ。
My wife is good at cooking.
店員：「奥さんはご一緒ですか？」 客：「今日は来ていません。」
Clerk: "Is your wife with you?" Customer: "She's not here today."