foster sister
Non-biological raised sibling
A foster sister is a girl or woman raised in the same household but not related by blood—typically because one child was taken in by the other's family through foster care or informal arrangement.
The relationship implies shared upbringing without biological or adoptive legal ties: My foster sister and I grew up together after her parents died.
- adoptionLegal family formation
- siblingBrother or sister
- stepfamilyHousehold joined by remarriage
- orphanChild whose parents died
- group homeSupervised shared residence
guardianship · legal guardian · social worker · bond · family bond · kinship · childhood · family · nurture · care · home · belonging · raised · connected · ward · household · chosen family · found family
foster, sister, fostered, fostering, fosters, fosterage, sisters, sisterly, sisterhood