Son-in-law \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.
资料来源 : WordNet®
son-in-law
n : the husband of your daughter
[also: {sons-in-law} (pl)]