Engine vs Machine vs Motor

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

Engine

Top 1,000 (very common)A2noun

Machine

Top 1,000 (very common)A1noun

Motor

Top 1,000 (very common)B2noun
 EngineMachineMotor
Pronunciation🇬🇧 /["/ˈendʒɪn/"]/🇺🇸 /["/ˈendʒɪn/"]/🇬🇧 /["/məˈʃiːn/"]/🇺🇸 /["/məˈʃiːn/"]/🇬🇧 /["/ˈməʊtə(r)/"]/🇺🇸 /["/ˈməʊtər/"]/
MeaningA machine that makes something move or work.A machine is a device that uses energy to do work or perform a task.A machine that makes something move.
ExampleThe engine of the car makes a loud noise when it starts.The machine was broken, so we couldn't finish our work.The motor in my car is making a strange noise.
RegisterNeutralNeutralNeutral
How commonTop 1,000 (very common)Top 1,000 (very common)Top 1,000 (very common)
CEFR levelA2A1B2
Part of speechnounnounnoun
Collocationsbig, powerful, small, crank, crank up, fire, run, idle, tick over, capacity, power, speed, in an/​the engine, be powered by a… engine, the noise, roar, sound, etc. of the engine, large, powerful, diesel, build, driver, shedgiant, 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 something
Antonymsfailure, stophuman, organismbrake, stop
Common mistakesConfused with 'engineer'., Using 'engine' when referring to a vehicle instead of the machine inside., Mispronouncing the word, especially the 'g' sound.Confusing '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.
Usage notesCommonly used in everyday contexts like cars or machines. Not typically used in formal documents unless discussing technical subjects.Use '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.

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Engine
Machine

Frequently asked questions: Engine vs Machine vs Motor

What's the difference between Engine, Machine, and Motor?

Engine: A machine that makes something move or work. Machine: A machine is a device that uses energy to do work or perform a task. Motor: A machine that makes something move.

Which is more advanced: Engine, Machine, and Motor?

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

Are Engine, Machine, and Motor the same CEFR level?

Engine: A2, Machine: A1, Motor: B2 on the CEFR scale.

What part of speech are Engine, Machine, and Motor?

Engine: noun, Machine: noun, Motor: noun.

Can you show an example of each?

Engine: The engine of the car makes a loud noise when it starts. Machine: The machine was broken, so we couldn't finish our work. Motor: The motor in my car is making a strange noise.

Can I use Engine, Machine, and Motor interchangeably?

Not always. Engine, Machine, and Motor 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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