My coworker got promoted before I did.
If anyone wants to know who worked on the report it was my coworker and me
Dork is a noun.
My coworker and I went on a business trip.
To help my coworker get a promotion, I used the art of aggrandizement.
Hiring that coworker
The police theorize that she was murdered by a spurned lover. Did the newlywed spurn the advances of her coworker?
My coworker is such a nincompoop, he can never seem to get anything done correctly.
She wore the bright red dress hoping to catch the fancy of her handsome coworker.
No, except at the beginning of a sentence because it is n ot a proper n ou n.
She canceled the meeting out of spite towards her coworker who had taken credit for her idea.
I recently became acquainted with my new coworker at the company retreat.
She became infatuated with her new coworker after their first meeting.