For instance, in my father's business the timing of sales and purchases was very important, and he would sometimes write or say to his colleagues "There is a tide," without going into detail.

Both are my colleagues.

I would like to express our thanks on behalf of my colleagues.

A colleague has every advantage over me.

My colleagues welcomed me very warmly.

The study by Meyer and his colleagues was unusual.

Mr Brown is jealous of his colleague's success.

Mr Turner bade farewell to his colleagues.

I must confer with my colleagues on the matter.

It is not good of you to take advantage of your colleagues.