Centroids refer to the center of a geometric figure, and there are several synonyms that may be used to describe this point. Some of these include the barycenter, center of balance, and center of gravity. These terms are used in different contexts, depending on the shape or object being referred to. For example, barycenter is commonly used in astronomy to describe the point in space around which two celestial bodies orbit. Center of balance is often used in physics and engineering to describe the point where an object is in equilibrium, and the center of gravity is used to describe the point where the gravitational pull of an object is evenly distributed.