The noun car has 5 senses (first 3 from tagged texts)
1. (598) 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")
2. (24) car, railcar, railway car, railroad car -- (a wheeled vehicle adapted to the rails of railroad; "three cars had jumped the rails")
3. (1) 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")