Motor vs The engine

When to use each in English, with meaning, register, and examples.

Motor

Top 1,000 (very common)B2noun

The engine

Top 1,000 (very common)
 MotorThe engine
Pronunciation🇬🇧 /["/ˈməʊtə(r)/"]/🇺🇸 /["/ˈməʊtər/"]/🇬🇧 //ði ˈɛn.dʒɪn//🇺🇸 //ði ˈɛn.dʒɪn//
MeaningA machine that makes something move.A machine that converts fuel into movement.
ExampleThe motor in my car is making a strange noise.The engine of the car was making a strange noise.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 1,000 (very common)
CEFR levelB2-
Part of speechnoun
Collocationslarge, powerful, small, start, turn on, turn off, run, work, drive somethingrev the engine, engine noise, engine failure, car engine, engine performance
Antonymsbrake, stop-
Common mistakesConfused with 'moter', a common misspelling., Used incorrectly as a verb; 'motor' is a noun., Misunderstood as referring only to electric motors, while it includes other types.Confused with 'the motor' - 'engine' typically refers to the machine in vehicles., Using 'engines' incorrectly - remember it's 'engine' when talking about one.
Usage notesUsed when talking about machines, vehicles, or engines. Not typically used in very formal contexts, but acceptable in everyday conversation.Used in both spoken and written English, appropriate in technical contexts and everyday conversation. Avoid using it in overly casual settings unless discussing cars or machinery.

See it in real clips

The engine

Frequently asked questions: Motor vs The engine

What's the difference between Motor and The engine?

Motor: A machine that makes something move. The engine: A machine that converts fuel into movement.

Can you show an example of each?

Motor: The motor in my car is making a strange noise. The engine: The engine of the car was making a strange noise.

Can I use Motor and The engine interchangeably?

Not always. Motor and The engine are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

Related comparisons