car

noun18

1. •
   a vehicle with an engine and usually four wheels that is smaller than a bus or truck

   • He drove his car to the theatre.
   • He was thinking about buying a brand new car.
2. •
   Any vehicle designed to run on rails, especially an unpowered one towed by being connected to others.
3. •
   (US, Canada) An unpowered unit in a railroad train, used to hold either passengers or cargo.

   • The conductor coupled the cars to the locomotive.
4. •
   A similar vehicle used in special contexts, such as mines, quarries, and mills.
5. •
   an individual vehicle, powered or unpowered, in a multiple unit.

   • The 11:10 to London was operated by a 4-car diesel multiple unit.
6. •
   A passenger-carrying unit in a subway or elevated train, whether powered or not.

   • From the frontmost car of the subway, he filmed the progress through the tunnel.
7. •
   The moving, load-carrying component of an elevator or other cable-drawn transport mechanism.

   • Fix the car of the express elevator - the door is sticking.
8. •
   The passenger-carrying portion of certain amusement park rides, such as Ferris wheels.

   • The most exciting part of riding a Ferris wheel is when your car goes over the top.
9. •
   The part of an airship, such as a balloon or dirigible, which houses the passengers and control apparatus.

   • Everything being apparently in readiness now, I stepped into the car of the balloon, […] — 1850
10. •
    The first part of a cons in Lisp. The first element of a list.

    • The elements of a list are the successive cars along the "cdr chain." That is, the elements are the car, the car of the cdr, the car of the cdr of the cdr, etc. — 2000
11. •
    A rough unit of quantity approximating the amount which would fill a railroad car.

    • We ordered five hundred cars of gypsum.
12. •
    A sliding fitting that runs along a track.

    • On boats 25 feet or more, it is best to mount a mast car and track on the front of the mast so you can adjust the height of the pole above the deck. — 1995
13. •
    (US) A floating perforated box for living fish.
14. •
    (US, slang) A clique or gang.
15. •
    (no longer used) A wheeled vehicle, drawn by a horse or other animal.

    • It shall suffice me to enioy your loue, Which whiles I haue, I thinke my selfe as great, As Caesar riding in the Romaine streete, With captiue kings at his triumphant Carre. — 1594
16. •
    (no longer used) A cart.

    • So it was agreed that the farmer shud sind his car to take his little bit o' furniture, an' that he shud remove an the following Thursday. — 1850
17. •
    (no longer used) A chariot.
18. •
    (UK, no longer used) A four-wheeled cab, as opposed to a (two-wheeled) Hansom cab.

noun2

1. •
   Initialism of chimeric antigen receptor.
2. •
   Abbreviation of carnitine.