As an adjective, "air-ride" is used to describe a vehicle or vehicle component that is equipped with an air suspension system, as described in my previous response. For example, a truck with air suspension can be referred to as an "air-ride truck", or a car with an air suspension system can be called an "air-ride vehicle". The term is often used to emphasize the smoothness and comfort of a vehicle's ride when equipped with an air suspension system.