Their colleague was transferred to an overseas branch. ✬

A colleague is coming to visit me. ✬

My colleague and her husband are both American. ✬

Tom is my colleague. ✬

This is Tom, my colleague. ✬

She was my colleague before they fired her. ✬

Tom is my colleague and my friend. ✬

I'm a colleague of Tom's. ✬

We have a colleague in Australia. ✬

Tom was a colleague of mine before they fired him. ✬