Welterweight is a term used to describe a weight class in combat sports such as boxing and mixed martial arts. The term is often used interchangeably with other synonyms such as middleweight, super welterweight, and junior middleweight. In boxing, welterweight refers to fighters who weigh between 140-147 pounds. However, in MMA, welterweight typically refers to fighters who weigh between 156-170 pounds. Other synonyms for welterweight in MMA include lightweight and middleweight. In the world of boxing, super welterweight and junior middleweight are synonyms for welterweight and refer to fighters who weigh between 147-154 pounds. Ultimately, the weight class is dependent on the specific organization and ruleset being followed.