Torsion bars are suspension components that are responsible for absorbing vertical motions of a vehicle due to uneven terrain. There are numerous synonyms for torsion bars that are commonly used. One such synonym is torsion springs, which perform the same function as torsion bars, but in a spring-like manner. Another synonym for torsion bars is sway bars, which help to stabilize a vehicle and reduce body roll during turns. Other synonyms include torsion axles, torsion tubes, torsion arms, and torsion bars suspension systems. These different terms are used to describe the same type of suspension component that functions to smooth out a vehicle's ride and improve handling.