Device vs Machine

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

Device

Top 1,000 (very common)A2noun

Machine

Top 1,000 (very common)A1noun
 DeviceMachine
Pronunciation🇬🇧 /["/dɪˈvaɪs/"]/🇺🇸 /["/dɪˈvaɪs/"]/🇬🇧 /["/məˈʃiːn/"]/🇺🇸 /["/məˈʃiːn/"]/
MeaningA tool or machine used for a specific purpose.A machine is a device that uses energy to do work or perform a task.
ExampleI use a smartphone as my main device for communication.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
Collocationsclever, ingenious, labour-saving/​labor-saving, be fitted with, have, connect, comprise something, consist of something, be designed to, device for, clever, ingenious, labour-saving/​labor-saving, be fitted with, have, connect, comprise something, consist of something, be designed to, device forgiant, 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
Antonymsdisuse, neglecthuman, organism
Common mistakesConfused with 'devise', which means to create or plan something., Using 'device' as a verb; it is only a noun., Assuming all devices are electronic; can refer to any tool.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 notesUsed to refer to gadgets or instruments, often in technology. More common in tech contexts. Avoid in very casual settings where simpler terms (like 'thing') might be used.Use 'machine' for mechanical devices like cars or computers. Avoid using it for living beings or to describe simple tools.

Frequently asked questions: Device vs Machine

What's the difference between Device and Machine?

Device: A tool or machine used for a specific purpose. Machine: A machine is a device that uses energy to do work or perform a task.

Which is more advanced: Device and Machine?

Device is the highest level, at A2, on the CEFR scale.

Are Device and Machine the same CEFR level?

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

What part of speech are Device and Machine?

Device: noun, Machine: noun.

Can you show an example of each?

Device: I use a smartphone as my main device for communication. Machine: The machine was broken, so we couldn't finish our work.

Can I use Device and Machine interchangeably?

Not always. Device 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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