Co-workers refer to people who work together in the same organization or company. They work together, and their bonding plays a vital role in the growth and success of a business. Though co-workers is an acceptable term, sometimes, using synonyms can make your writing more interesting and engaging. Some synonyms for co-workers are colleagues, teammates, associates, comrades, allies, partners, or peers. Colleagues are more formal, whereas teammates, comrades, or partners imply a more collaborative relationship. Associates, allies, or peers imply equal status or shared interests. Using synonyms can add variety to your writing and make it more interesting and engaging.