Noun:
1: machine, motorcar, auto, automobile, car a motor vehicle with four wheels; usually propelled by an internal combustion engine; "he needs a car to get to work"
2: railway car, railroad car, railcar, car a wheeled vehicle adapted to the rails of railroad; "three cars had jumped the rails"
3: cable car, car a conveyance for passengers or freight on a cable railway; "they took a cable car to the top of the mountain"
4: car, gondola the compartment that is suspended from an airship and that carries personnel and the cargo and the power plant
5: car, elevator car where passengers ride up and down; "the car was on the top floor"