An air spring is a type of suspension system that is designed to provide a smooth and comfortable ride for passengers. However, there are also other synonyms for the term air spring, including airbag suspension, air ride suspension, and air suspension system. These terms all refer to the same type of suspension system that uses compressed air to cushion the vehicle's movement. Airbag suspension is especially popular with heavy-duty commercial vehicles, as it provides better load-carrying capacity and improved ride quality. Additionally, air suspension system is important for high-performance vehicles, SUVs, and trucks, as it provides better handling and can be adjusted for better response on rough terrain.