Steering aids are devices used to help control the direction of a vehicle. AXLES, which are five-letter words, are components of a vehicle's suspension system that connect the wheels to the frame and allow them to rotate. REINS, also five-letter words, are straps or ropes used to control an animal, such as a horse, and can be used to control the direction of a vehicle. Together, AXLES and REINS are two examples of steering aids.