Apparatus vs Machine

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

Apparatus

Top 3,000 (common)C1noun

Machine

Top 1,000 (very common)A1noun
Most common: Machine
 ApparatusMachine
Pronunciation🇬🇧 /["/ˌæpəˈreɪtəs/"]/🇺🇸 /["/ˌæpəˈrætəs/"]/🇬🇧 /["/məˈʃiːn/"]/🇺🇸 /["/məˈʃiːn/"]/
MeaningA set of tools or equipment for a specific purpose.A machine is a device that uses energy to do work or perform a task.
Examplea piece of laboratory apparatusThe machine was broken, so we couldn't finish our work.
RegisterNeutralNeutral
How commonTop 3,000 (common)Top 1,000 (very common)
CEFR levelC1A1
Part of speechnounnoun
Collocationsbreathing, electrical, experimental, piece, the apparatus of government, the apparatus of the state, breathing, electrical, experimental, piece, the apparatus of government, the apparatus of the stategiant, 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
Antonymsdisassembly, dismantling, removalhuman, organism
Common mistakesConfused with 'appliance' – 'appliance' refers to household devices like microwaves., Using it in informal contexts – 'apparatus' is more formal and technical.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 notesUse 'apparatus' when referring to complex machinery or systems, often in scientific or technical contexts. It is less common in casual conversation.Use 'machine' for mechanical devices like cars or computers. Avoid using it for living beings or to describe simple tools.

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Apparatus
Machine

Frequently asked questions: Apparatus vs Machine

What's the difference between Apparatus and Machine?

Apparatus: A set of tools or equipment for a specific purpose. Machine: A machine is a device that uses energy to do work or perform a task.

Which is more common: Apparatus and Machine?

Machine is the most common in everyday English.

Which is more advanced: Apparatus and Machine?

Apparatus is the highest level, at C1, on the CEFR scale.

Are Apparatus and Machine the same CEFR level?

Apparatus: C1, Machine: A1 on the CEFR scale.

What part of speech are Apparatus and Machine?

Apparatus: noun, Machine: noun.

Can you show an example of each?

Apparatus: a piece of laboratory apparatus Machine: The machine was broken, so we couldn't finish our work.

Can I use Apparatus and Machine interchangeably?

Not always. Apparatus 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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