The term "athletic union" refers to a group or organization that is focused on promoting sports and fitness activities for its members. Synonyms for this term include sports club, athletic association, fitness group, and exercise organization. Other related terms might include fitness center, gym, or health club, which are all places where individuals can engage in athletic activities. The key focus of all these synonyms is on the physical health and well-being of their members, with an emphasis on sports, exercise, and other physical activities. Whether you are a professional athlete or simply looking to get in shape, these synonyms provide a range of options for getting involved with an athletic union or similar organization.