Cool MateCapacity vs Size vs Volume
When to use each in English, with meaning, register, and examples.
Capacity
Top 2,000 (common)B2noun
Size
Top 1,000 (very common)A2noun
Volume
Top 1,000 (very common)B2noun
| Capacity | Size | Volume | |
|---|---|---|---|
| Pronunciation | 🇬🇧 //kəˈpæs.ɪ.ti//🇺🇸 //kəˈpæ.sɪ.ti// | 🇬🇧 /["/saɪz/"]/🇺🇸 /["/saɪz/"]/ | 🇬🇧 /["/ˈvɒljuːm/"]/🇺🇸 /["/ˈvɑːljəm/"]/ |
| Meaning | How much something can hold or do. | how big or small something is | The amount of space a substance or object occupies, or how loud something is. |
| Example | The capacity of the stadium is 50,000 people. | The size of the shirt was too small for me. | The volume of this box is quite large, making it perfect for storage. |
| Register | Neutral | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 1,000 (very common) | Top 1,000 (very common) |
| CEFR level | B2 | A2 | B2 |
| Part of speech | noun | noun | noun |
| Collocations | full capacity, seating capacity, at capacity, capacity limits | considerable, enormous, fair, adjust, change, control, grow, increase, decline, from the size of, in size, in the size of, given the size of something, half the size of something, two, three, etc. times the size of something, large, medium, small, range, variety, be, take, wear, fit somebody, in a/your size, be a size too big, small, etc., size matters | total, interior, internal, calculate, measure, by volume, in volume, sheer, considerable, enormous, increase, decrease, reduce, double, grow, increase, high, loud, full, increase, turn up, decrease, control, dial, knob, at… volume, volume on, bound, leather-bound, companion, series, edit, illustrate, publish, in a/the volume, volume of, volume on, run to five, several, etc. volumes, bound, leather-bound, companion, series, edit, illustrate, publish, in a/the volume, volume of, volume on, run to five, several, etc. volumes |
| Antonyms | inability, incapacity | small, tiny, minute | silence, quiet, smallness |
| Common mistakes | Confused 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. | Confusing 'size' with 'sized'; 'sized' is used as an adjective., Using 'size' where 'amount' would be more appropriate when referring to uncountable quantities., Saying 'the sizes of the shoes' instead of 'the shoe sizes'. | Confusing volume with 'amount' when discussing quantity in general., Using it incorrectly as a verb instead of the noun form., Saying 'high volume' when referring to low sound levels. |
| Usage notes | Used 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. | Used in both formal and informal contexts. 'Size' is suitable for descriptions of objects, clothing, and measurements but is less appropriate for abstract concepts without clear dimensions. | Use 'volume' for both physical space and sound levels. It's neutral and appropriate in most contexts, from casual conversations to formal discussions. Avoid using it for abstract concepts like 'volume of work.' |
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Frequently asked questions: Capacity vs Size vs Volume
What's the difference between Capacity, Size, and Volume?
Capacity: How much something can hold or do. Size: how big or small something is Volume: The amount of space a substance or object occupies, or how loud something is.
Are Capacity, Size, and Volume the same CEFR level?
Capacity: B2, Size: A2, Volume: B2 on the CEFR scale.
What part of speech are Capacity, Size, and Volume?
Capacity: noun, Size: noun, Volume: noun.
Can you show an example of each?
Capacity: The capacity of the stadium is 50,000 people. Size: The size of the shirt was too small for me. Volume: The volume of this box is quite large, making it perfect for storage.
Can I use Capacity, Size, and Volume interchangeably?
Not always. Capacity, Size, and Volume 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.