Capacity vs Extent

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

Capacity

Top 2,000 (common)B2noun

Extent

Top 2,000 (common)B2noun
 CapacityExtent
Pronunciation🇬🇧 //kəˈpæs.ɪ.ti//🇺🇸 //kəˈpæ.sɪ.ti//🇬🇧 /["/ɪkˈstent/"]/🇺🇸 /["/ɪkˈstent/"]/
MeaningHow much something can hold or do.The degree or amount of something.
ExampleThe capacity of the stadium is 50,000 people.The extent of the damage was greater than we initially thought.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)
CEFR levelB2B2
Part of speechnounnoun
Collocationsfull capacity, seating capacity, at capacity, capacity limitsfull, greatest, maximum, reach, see, consider, in extent, to an extent, to a…extent, at something’s greatest extent, to a considerable extent, to a great extent, full, greatest, maximum, reach, see, consider, in extent, to an extent, to a…extent, at something’s greatest extent, to a considerable extent, to a great extent
Antonymsinability, incapacitylimited, minimal, modest
Common mistakesConfused with 'capability', which refers to ability rather than volume., Using 'capacity' for individual abilities when 'capability' is more appropriate., Mispronouncing the word with emphasis on the wrong syllable.Using 'extent' as a verb rather than a noun., Confusing 'extent' with 'extent of' when referring to limits or boundaries., Overusing 'extent' when a simpler term like 'amount' would be clearer.
Usage notesUsed in both formal and informal contexts. Common in discussions about limits or ability. Not typically used in casual conversation unless referring to space or limits.Use 'extent' in formal or written contexts when discussing levels or degrees. It's less common in everyday speech.

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Capacity

Frequently asked questions: Capacity vs Extent

What's the difference between Capacity and Extent?

Capacity: How much something can hold or do. Extent: The degree or amount of something.

Are Capacity and Extent the same CEFR level?

Capacity: B2, Extent: B2 on the CEFR scale.

What part of speech are Capacity and Extent?

Capacity: noun, Extent: noun.

Can you show an example of each?

Capacity: The capacity of the stadium is 50,000 people. Extent: The extent of the damage was greater than we initially thought.

Can I use Capacity and Extent interchangeably?

Not always. Capacity and Extent 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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