Cooperant is a relatively uncommon term that is often used to describe someone who works collaboratively with others or who cooperates in order to achieve a goal. There are a number of synonyms that can be used to describe this type of behavior, including collaborator, teammate, partner, ally, helper, supporter, and co-worker. Each of these words has a slightly different connotation, but all of them suggest a willingness to work with others in a constructive and productive way. Whether you're working on a team project, collaborating with colleagues on a new initiative, or simply trying to build stronger personal relationships, it's important to be a cooperant that can be relied upon to contribute in a positive and helpful way.