son-in-law /ˈsʌnənˌlɔ/
女婿
Son-in-law n.; pl. Sons-in-law The husband of one's daughter; a man in his relationship to his wife's parents.
To take me as for thy son in lawe. --Chaucer.
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son-in-law
n : the husband of your daughter
[also: sons-in-law (pl)]