Parents – people with parental responsibilities, for example mothers, fathers, foster carers, adoptive parents, step-parents, ‘kinship’ parents and grandparents.
Rhieni – pobl â chyfrifoldebau rhieni, er enghraifft mamau, tadau, gofalwyr maeth, rhieni sy’n mabwysiadu, llys-rieni, rhieni a theidiau a neiniau 'sy'n berthnasau'.