A "Superset" is a term used in fitness and strength training that refers to performing two exercises back-to-back with little to no rest in between. This technique can target the same muscle group or different ones, allowing for a more efficient workout. Supersets can help increase muscle endurance and save time during training sessions. In addition to fitness, the term "Superset" is also used in data analytics, particularly in the context of Apache Superset. This is an open-source data visualization and exploration platform that allows users to create interactive dashboards and charts, making it easier to analyze and understand complex data sets.