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noun. , plural sis·ters-in-law. the sister of one's spouse. the wife of one's brother or sister.
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Sibling-in-law

A sibling-in-law is the spouse of one's sibling, the sibling of one's spouse or the person who is married to the sibling of one's spouse. More commonly, a sibling-in-law is referred to as a brother-in-law for a male sibling-in-law and a... Wikipedia
SISTER-IN-LAW meaning: 1. the wife of your brother or sister, or the sister of your husband or wife, or the wife of the…. Learn more.
SISTER–IN–LAW meaning: 1 : the sister of your husband or wife; 2 : the wife of your brother.
May 16, 2021 · Depends. A sister-in-law could either mean; the sister of your wife or husband, the wife of your brother, or the wife of your brother-in-law. ...
Sister in Laws from www.collinsdictionary.com
Someone's sister-in-law is the sister of their husband or wife, or the woman who is married to their brother.
May 31, 2016 · Your spouse's female siblings are not your sister-in-laws, but your sisters-in-law. The same pattern applies to brothers-in-law, fathers-in-law ...
Noun edit · A female relative of one's generation, separated by one degree of marriage: The sister of one's spouse. Though they are not twins, my sister-in-law ...
A sibling-in-law is the spouse of one's sibling, the sibling of one's spouse or the person who is married to the sibling of one's spouse.
SISTERS-IN-LAW meaning: 1. plural of sister-in-law 2. plural of sister-in-law. Learn more.