supervisor
US /ˈsuː.pɚ.vaɪ.zɚ/
UK /ˈsuː.pɚ.vaɪ.zɚ/

1.
a person who supervises a person or an activity
:
•
My supervisor approved my leave request.
•
She works as a production supervisor at the factory.
a person who supervises a person or an activity