colleague, coworker
Son collègue, le Pr Schneider, ne sait pas ce qui a pu lui arriver.
His colleague, Professor Schneider, doesn’t know what could have happened to him.
— Indiana Jones et la dernière croisade (1989)
Harry, je te présente un vieil ami et aussi ancien collègue.
Harry, I'd like to introduce you to an old friend and former colleague.
— Harry Potter et le Prince de sang-mêlé (2009)
Tu dis à ta collègue de changer ses manières où elle devra prendre le métro.
You tell your colleague to change her ways, or she'll have to take the subway.
— PIKU (2015)