stepfather
US /ˈstepˌfɑː.ðɚ/
UK /ˈstepˌfɑː.ðɚ/

1.
Stiefvater
a man who is married to your mother but who is not your biological father
:
•
My stepfather taught me how to fish.
Mein Stiefvater hat mir das Angeln beigebracht.
•
She has a good relationship with her stepfather.
Sie hat eine gute Beziehung zu ihrem Stiefvater.