In the realm of sports, team sports refer to activities that involve groups of people working together to achieve a common goal. While team sports come in varying forms and rules, they all share the cooperative effort between players as a key element to success. As for synonyms for team sports, you might use the term "group sports" or "collaborative sports." "Cooperative sports" might also work, as would "shared sports" or "joint sports." Regardless of the term used, the concept remains the same: team sports require teamwork, communication, and a shared determination to win.