(n.) A framework moving on casters, designed to support children while learning to walk.

PCV valve accelerator alternator ambulance ammeter armored car auto autocar beach buggy bearings berlin boat bonnet boot brake brougham bucket seat buggy bumper bus cabriolet camper camshaft car carburetor carryall chassis choke clutch coach combat car command car connecting rod convertible convertible coupe convertible sedan convertible top coupe cowl crank crankcase crankshaft crate cutout cylinder cylinder head dash dashboard differential distributor double fueler dragster exhaust exhaust pipe fan fastback fender fire engine flywheel fueler gear gearbox gearshift generator gocart golf cart headlight headrest heap hearse hood horn hot rod hovercar ignition intake jalopy jeep landau limousine machine manifold motor motor vehicle motorcar motorized vehicle muffler parking light phaeton piston power brakes power steering race car racer racing car radiator rail rear-view mirror roadster rocket car runabout saloon seat belt sedan sedan limousine shock absorber spark plug speedometer sports car springs staff car starter station wagon steamer steering wheel top torpedo tourer touring coupe tractor transmission tub two-seater universal valve voiture wheels windscreen windshield wreck wrecker