stepmother
US /ˈstepˌmʌð.ɚ/
UK /ˈstepˌmʌð.ɚ/

1.
stiefmoeder
a woman who is married to someone's father but who is not their biological mother
:
•
My stepmother is very kind to me.
Mijn stiefmoeder is erg aardig voor me.
•
She has a good relationship with her stepmother.
Ze heeft een goede relatie met haar stiefmoeder.