Engine vs Machine

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
 EngineMachine
Pronunciation🇬🇧 /["/ˈendʒɪn/"]/🇺🇸 /["/ˈendʒɪn/"]/🇬🇧 /["/məˈʃiːn/"]/🇺🇸 /["/məˈʃiːn/"]/
MeaningA machine that makes something move or work.A machine is a device that uses energy to do work or perform a task.
ExampleThe engine of the car makes a loud noise when it starts.The machine was broken, so we couldn't finish our work.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 1,000 (very common)
CEFR levelA2A1
Part of speechnounnoun
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 machine
Antonymsfailure, stophuman, organism
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.
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.

Frequently asked questions: Engine vs Machine

What's the difference between Engine and Machine?

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.

Are Engine and Machine the same CEFR level?

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

Can I use Engine and Machine interchangeably?

Not always. Engine and Machine 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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