The word "heptade" refers to a group of seven things or elements. However, there are several synonyms one can use to convey the same meaning - septet, septuor, septuple, heptagon, and sevenfold. Septet is commonly used in music to describe a group of seven performers or musicians. Septuor, on the other hand, is a French term for septet which is also used in music. Septuple refers to seven times the number or amount, while heptagon is a mathematical term for a shape with seven sides. Sevenfold describes something that is seven times more than the original amount. These synonyms for heptade can be used interchangeably to convey the idea of a group of seven things.