car

/kɑɹ/
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Most commonly a small passenger road vehicle, also a rail vehicle, a carrying compartment in certain machines, and a Lisp operation on cons cells.

Examples

  • She walked through three cars to reach the café.
  • He parked his car outside the station.
  • The function combines car with cdr to walk the tree.
  • We travelled to the coast by car.
  • Technicians inspected the car and its safety brakes.

Similar words

auto
railcar
wagon
motorcar
cabin
gondola
cab
automobile
coach
first

Meanings

Passenger road vehicle

noun
transportation
neutral
A motor vehicle, usually with four wheels, designed mainly to carry a small number of people on roads.

Usage

Use car for a small passenger road vehicle. Automobile is more formal, auto is chiefly North American, and vehicle is broader because it also covers buses, trucks, and motorcycles.

Examples

  • She bought a new car last week.
  • We travelled to the coast by car.
  • The car broke down on the motorway.
  • He parked his car outside the station.
  • Electric cars produce no exhaust emissions while being driven.
  • The family shares one car.

Common mistakes

A singular countable car normally needs an article or other determiner, and travel mode uses by car without one.
IncorrectCorrect
She bought car yesterday. She bought a car yesterday.
We went there by the car. We went there by car.
He drives his car to home. He drives his car home.

Similar words

Rail vehicle or train section

noun
railways
neutral
A vehicle that runs on rails, especially one of the separate sections of a train used for passengers, freight, or a particular service.

Usage

Use car for a rail vehicle chiefly in North American English, especially in compounds such as dining car and freight car. British English usually prefers carriage, coach, or wagon according to the type.

Examples

  • We found our seats in the last car of the train.
  • The dining car opened at six.
  • Workers coupled another freight car to the train.
  • Each car has space for bicycles.
  • She walked through three cars to reach the café.

Common mistakes

The surrounding railway context must be clear because bare car otherwise suggests an automobile.
IncorrectCorrect
The train has ten car. The train has ten cars.
We ate in the food car. We ate in the dining car.

Similar words

Passenger or cargo compartment

noun
engineering
technical
The compartment that carries people, goods, or equipment in an elevator, balloon, or airship.

Usage

Use car in technical contexts where the larger system is already named, as in elevator car or the car of an airship. Cab is common for an elevator enclosure, while gondola is usual for the basket or compartment under a balloon.

Examples

  • The elevator car can carry twelve passengers.
  • Technicians inspected the car and its safety brakes.
  • The lift car stopped level with the floor.
  • The airship's car held the crew and instruments.
  • Ballast was released from the balloon car.

Common mistakes

A bare car needs enough engineering context to prevent it being read as a road vehicle.
IncorrectCorrect
The elevator car rose up to the fifth floor. The elevator car rose to the fifth floor.

Similar words

First part of a Lisp cons

noun
computer science
technical
A Lisp operation that returns the first component of a cons cell, commonly the first element of a non-empty list.

Usage

Use car in Lisp for the first component of a cons cell. It is often described as the head of a list, but car is defined on cons cells rather than as a general sequence operation. First can be clearer when code is specifically working with lists.

Examples

  • In Common Lisp, car returns the first component of a cons.
  • The expression (car items) reads the first item.
  • Calling car on this pair returns the symbol on the left.
  • The function combines car with cdr to walk the tree.
  • Use car only after checking that the value is a cons.

Common mistakes

Function-call syntax requires the argument inside the same parentheses, and car returns the first component rather than the remainder.
IncorrectCorrect
(car) my-list (car my-list)
Use car to return the rest of the list. Use cdr to return the rest of the list.

Similar words

Usage

The road-vehicle sense is the everyday default. Railway, engineering, and Lisp uses normally supply enough context to identify their specialist meanings.

Common mistakes

Writing by the car for the mode of travel is usually wrong. Use by car, but keep the article when referring to a particular vehicle.

Etymology

From Middle English carre, borrowed from Anglo-French carre or charre, ultimately from Late Latin carra, the plural of carrum, meaning a vehicle or cart.

FAQ

What does car usually mean?

It usually means a small motor vehicle designed mainly to carry passengers on roads.

Can car mean part of a train?

Yes. Especially in North American English, a car is a rail vehicle or one section of a train.

What is an elevator car?

It is the compartment that moves in the shaft and carries passengers or goods.

What does car do in Lisp?

It returns the first component of a cons cell, commonly the first element of a non-empty list.

Should I write by car or by the car?

Use by car for the mode of travel. Use the car when referring to a particular vehicle.

Where does the word car come from?

It came through Middle English and Anglo-French from a Late Latin word for a cart or vehicle.

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