Irn-Bru is a beloved Scottish soft drink that has been around since 1901. As it is such a unique product, there are not many synonyms that can adequately describe it. Some may refer to Irn-Bru as a carbonated beverage, a fizzy drink, a soft drink, or simply a soda. Others may describe it as a ginger ale or a cola, although it doesn't quite fit into either category. Some may even call it an energy drink due to its high caffeine content. However, at the end of the day, Irn-Bru is truly in a class of its own and cannot be accurately compared to other drinks.