colleague
US /ˈkɑː.liːɡ/
UK /ˈkɑː.liːɡ/

1.
collega
a person with whom one works, especially in a profession or business
:
•
My colleague helped me with the presentation.
Mijn collega hielp me met de presentatie.
•
She is a valued colleague in our department.
Ze is een gewaardeerde collega op onze afdeling.