sister-in-law
nouncommon in dialogue
- United Kingdom//ˈsɪs.tə.ɪn.lɔː//
- United States//ˈsɪs.tɚ.ɪn.lɔ//
A female relative of one's generation, separated by one degree of marriage: The sister of one's spouse.
noun
- 1
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 resembles my wife in almost every way.
- 2
A female relative of one's generation, separated by one degree of marriage: The wife of one's sibling.
My sister-in-law and my brother met while they were both on vacation in Jamaica.
- 3
Co-sister-in-law: The wife of one's sibling-in-law. The wife of the sibling of one's spouse.
- 4
Co-sister-in-law: The wife of one's sibling-in-law. The sister of the spouse of one's sibling.
Etymology
Inherited from Middle English suster-in-lawe; equivalent to sister + -in-law.
Forms
- plural
- sisters-in-law, sister-in-laws
sister-in-law · A female relative of one's generation, separated by one degree of marriage: The sister of one's spouse.
Sisters · A city in Deschutes County, Oregon.sit · To be in a position in which the upper body is upright and…Sit · A surname.