is a specific kind of: container | vehicle.

is a broader term that covers: baby buggy, baby carriage, carriage, go-cart, perambulator, pram, pushchair, pusher, stroller | bicycle, bike, cycle, wheel | boneshaker | car, railcar, railroad car, railway car | cart, go-cart, handcart, pushcart | horse-drawn vehicle | motor scooter, scooter | rolling stock | scooter | self-propelled vehicle | skateboard | house trailer, trailer | tricycle, trike, velocipede | monocycle, unicycle | waggon, wagon | coaster wagon, wagon | welcome wagon ... show more.

has as a part: axle | brake | splasher | wheel.