marriage relationship
Sister-in-law
Sister-in-law
Definition
A sister-in-law is typically the sister of your spouse, or the wife of your sibling.
How the relationship works
Affinity (marriage) creates the link; there is no required shared ancestor.
Example path
Sibling-in-law
Path: You → Husband → Sister
A sibling of your spouse (or spouse of your sibling) is a sibling-in-law — brother-in-law or sister-in-law depending on gender.
Frequently confused with
- Stepsister