Her husband was away on a long campaign, and the wife waited longingly at home.
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Literary, often appearing in classical poetry - most famously in 王昌龄's 《闺怨》: '悔教夫婿觅封侯' ('she regrets urging her husband to seek a noble title'). Modern speech uses 丈夫 or 老公.
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婿 appears in 女婿 ('son-in-law') - the 女 radical signals 'related-by-marriage male.' 夫婿 = 'a husband' from a wife's poetic vantage.
