Polite term for a wife, bride, or a woman who has married into a family (often used for someone else's wife or affectionately).
田中さんのお嫁さんは料理がとても上手です。
Mr. Tanaka's wife is very good at cooking.
昔は『お嫁さんに行く』と言って、妻になることを表現した。
In the past people said 'to go as an oyomesan' to mean becoming a wife.
子どもが生まれて、お嫁さんも忙しそうだ。
Their wife seems busy now that a child has been born.