foster daughter
/ˈfɔstər ˌdɔtər/
noun
- A girl who is raised by a family that is not her biological or legal adoptive family, usually through a formal arrangement.
- They welcomed their foster-daughter into their home when she was eight years old.
- My foster-daughter and I have a very close bond, even though we are not related by blood.
- The social worker visited the family to check on the foster-daughter's progress in school.