Meaning & use

motor

noun, adjective·Everyday

Last updated

UK/ˈməʊtə/
US/ˈmoʊtər/

Meanings

  1. nouncountable

    A machine that converts a source of energy, such as electricity or fuel, into mechanical motion.

    Grammar: Countable; plural is motors.

    Patterns

    • an electric motor
    • start a motor
    • a motor runs

    The electric motor in the washing machine needs replacing.

    He started the motor and the boat moved away from the dock.

    The motor stopped working after the power cut.

  2. nouncountableinformalBritish

    A car or other vehicle with an engine (informal, British).

    Grammar: Countable; often used in the plural with 'car' implied.

    Patterns

    • a new motor
    • buy a motor
    • motor trade

    She's just bought a new motor.

    He's always tinkering with his motor.

  3. adjectivebefore a noun

    Relating to or powered by a motor.

    Grammar: Used before a noun: motor vehicle, motor oil.

    Patterns

    • motor vehicle
    • motor oil
    • motor racing

    The motor industry is important to the economy.

    Motor racing is a popular sport in many countries.

Word forms

pluralmotors

Common combinations

electric motor
The electric motor is quiet and efficient.
motor vehicle
A motor vehicle must be registered.
motor oil
Check the motor oil regularly.
start the motor
He started the motor and drove off.

Synonyms and how they differ

engine
Engine often refers to a device that burns fuel, while motor more often refers to electric devices, though they overlap.
machine
Machine is a general term for any device that does work; motor is a specific type that produces motion.

Word family

motorist noun
A person who drives a car.
motorized adjective
Equipped with a motor.
motoring noun
The activity of driving or traveling by car.

Commonly confused: motor or engine?

motor vs engine

Engine usually burns fuel; motor is more often electric. But in everyday speech they are sometimes used interchangeably for cars.

Practice

The washing machine has a small electric ______ that turns the drum.

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