Machine vs Motor vs The engine

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

Machine

Top 1,000 (very common)A1noun

Motor

Top 1,000 (very common)B2noun

The engine

Top 1,000 (very common)
 MachineMotorThe engine
Pronunciation🇬🇧 /["/məˈʃiːn/"]/🇺🇸 /["/məˈʃiːn/"]/🇬🇧 /["/ˈməʊtə(r)/"]/🇺🇸 /["/ˈməʊtər/"]/🇬🇧 //ði ˈɛn.dʒɪn//🇺🇸 //ði ˈɛn.dʒɪn//
MeaningA machine is a device that uses energy to do work or perform a task.A machine that makes something move.A machine that converts fuel into movement.
ExampleThe machine was broken, so we couldn't finish our work.The motor in my car is making a strange noise.The engine of the car was making a strange noise.
RegisterNeutralNeutralNeutral
How commonTop 1,000 (very common)Top 1,000 (very common)Top 1,000 (very common)
CEFR levelA1B2-
Part of speechnounnoun
Collocationsgiant, great, huge, operate, run, use, go, work, break down, operator, parts, tool, by machine, in a/​the machine, on a/​the machine, a make of machine, party, political, marketing, politician, politics, a cog in the machine, a well-oiled machinelarge, powerful, small, start, turn on, turn off, run, work, drive somethingrev the engine, engine noise, engine failure, car engine, engine performance
Antonymshuman, organismbrake, stop-
Common mistakesConfusing 'machine' with 'mechanism'—a mechanism is a part of a machine., Using 'machine' to refer to non-mechanical items like software., Overgeneralizing 'machine' to include tools that don't use power.Confused 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 notesUse 'machine' for mechanical devices like cars or computers. Avoid using it for living beings or to describe simple tools.Used 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

Machine
The engine

Frequently asked questions: Machine vs Motor vs The engine

What's the difference between Machine, Motor, and The engine?

Machine: A machine is a device that uses energy to do work or perform a task. Motor: A machine that makes something move. The engine: A machine that converts fuel into movement.

Which is more advanced: Machine, Motor, and The engine?

Motor is the highest level, at B2, on the CEFR scale.

Can you show an example of each?

Machine: The machine was broken, so we couldn't finish our work. 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 Machine, Motor, and The engine interchangeably?

Not always. Machine, 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.

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