axle — An axle is a rod connecting a pair of wheels on a car or other vehicle.
live axle — an axle which rotates with the wheel; driving axle
Three-syllable rhymes
wheel and axle — a simple machine consisting, in its typical form, of a cylindrical drum to which a wheel concentric with the drum is firmly fastened: ropes are so applied that as one unwinds from the wheel, another rope is wound on to the drum.
