What is another word for six pack?
Pronunciation: [sˈɪks pˈak] (IPA) 
A six pack is a popular term used to describe a well-defined and toned abdominal muscle group. However, there are various synonyms for this term that are equally popular. Some of the most common synonyms for six pack include washboard abs, chiseled abs, toned midsection, defined core, cut abs, and flat belly. These synonyms are often used interchangeably to describe the same thing - a fit and toned abdominal appearance achieved through exercise and a healthy lifestyle. Regardless of the term used, a six pack is a sign of physical fitness and dedication to a healthy lifestyle.
