A youth not in the physical custody of a parent or guardian (this means that the youth is not living with a parent or guardian, and includes youth who are residing with a caregiver who does not have legal guardianship, and youth who are living on their own), and lacks a fixed, regular, and adequate nighttime residence. Practitioners may use this term to differentiate between youth that are unaccompanied and homeless from those that are still connected to a family that is experiencing homelessness. (www.nrcdv.org)