WORKOUT SITE is a term used to describe a place where people can go to exercise and stay fit. The two most common solutions for this term are SPA (3 letters) and GYM (3 letters). A SPA is a facility that offers various health and beauty treatments, such as massages, facials, and body wraps. A GYM is a facility that offers a variety of fitness equipment and classes, such as weight training, aerobics, and yoga. Both SPA and GYM provide a great environment for people to work out and stay in shape.