When it comes to physical fitness, an exercise set refers to a specific sequence of repetitions of a particular exercise. However, there are several synonyms that can be used interchangeably for this term. One such term is "circuit," which refers to a group of exercises performed in succession. Another synonym for exercise set is "rep sequence," which describes a specific number of repetitions of an exercise that are completed before moving onto another exercise. "Routine" is another synonym that can be used to describe a set of exercises performed regularly. Lastly, "workout plan" refers to a specific set of exercises designed to achieve a certain fitness goal. Regardless of the term used, an exercise set plays an important role in any fitness routine.