disapproval A collaborator is someone who helps an enemy who is occupying their country during a war. Two alleged collaborators were shot dead by masked activists
an associate who works with others toward a common goal; "partners in crime" someone who collaborates with an enemy occupying force
A collaborator is someone that you work with to produce a piece of work, especially a book or some research. The Irvine group and their collaborators are testing whether lasers do the job better