S: (n) ski jump (a steep downward ramp from which skiers jump)
S: (n) screw (a simple machine of the inclined-plane type consisting of a spirally threaded cylindrical rod that engages with a similarly threaded hole)
S: (n) wedge (something solid that is usable as an inclined plane (shaped like a V) that can be pushed between two things to separate them)
S: (n) quoin, coign, coigne (expandable metal or wooden wedge used by printers to lock up a form within a chase)
S: (n) shim (a thin wedge of material (wood or metal or stone) for driving into crevices)
S: (n) lever (a simple machine that gives a mechanical advantage when given a fulcrum)
S: (n) pulley, pulley-block, pulley block, block (a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope)
S: (n) wheel (a simple machine consisting of a circular frame with spokes (or a solid disc) that can rotate on a shaft or axle (as in vehicles or other machines))
S: (n) balance wheel, balance (a wheel that regulates the rate of movement in a machine; especially a wheel oscillating against the hairspring of a timepiece to regulate its beat)
S: (n) driving wheel (a wheel that drives a motor vehicle (transforms torque into a tractive force))
S: (n) gear, gear wheel, geared wheel, cogwheel (a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion)
S: (n) differential gear, differential (a bevel gear that permits rotation of two shafts at different speeds; used on the rear axle of automobiles to allow wheels to rotate at different speeds on curves)
S: (n) worm gear (gear consisting of a shaft with screw thread (the worm) that meshes with a toothed wheel (the worm wheel); changes the direction of the axis of rotary motion)
S: (n) pinwheel (a wheel that has numerous pins that are set at right angles to its rim) "he spun the pinwheel and it stopped with the pointer on `Go'"
S: (n) potter's wheel (a horizontal rotating wheel holding the clay being shaped by a potter) "the potter's wheel was invented in Asia Minor around 6500 BC"
S: (n) ratchet wheel (toothed wheel held in place by a pawl or detent and turned by a lever)
S: (n) roller (a small wheel without spokes (as on a roller skate))
S: (n) caster, castor (a pivoting roller attached to the bottom of furniture or trucks or portable machines to make them movable)
S: (n) machine, political machine (a group that controls the activities of a political party) "he was endorsed by the Democratic machine"
S: (n) car, auto, automobile, machine, motorcar (a motor vehicle with four wheels; usually propelled by an internal combustion engine) "he needs a car to get to work"
Verb
S: (v) machine (turn, shape, mold, or otherwise finish by machinery)
S: (v) machine (make by machinery) "The Americans were machining while others still hand-made cars"