This is the 4476th most frequent Polish word.
kolegą
The Polish word "kolegą" means "colleague" or "friend" in the instrumental case.
Here, 'kolegą' is used in the instrumental case connected with 'mojego', indicating an action involving a colleague.
Odwiedziłem wczoraj mojego kolegę.
I visited my friend yesterday.
Here, 'kolegą' is used to describe a relationship using the instrumental case.
Piotr jest moim kolegą z pracy.
Piotr is my colleague from work.
Here, 'kolegą' is used in the instrumental case to indicate companionship during the action of walking.