Counts vs Sum

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

Counts

Top 2,000 (common)

Sum

Top 1,000 (very common)B2noun
Most common: Sum
 CountsSum
Pronunciation🇬🇧 //kaʊnts//🇺🇸 //kaʊnts//🇬🇧 /["/sʌm/"]/🇺🇸 /["/sʌm/"]/
MeaningThe total number of something.The total amount when you add numbers together.
ExampleThe counts of the votes will be announced tomorrow.The sum of the two numbers is twenty.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CEFR level-B2
Part of speechnoun
Collocationscounts of votes, counts of items, actual counts, counts in statistics, counts for inventoryconsiderable, generous, good, borrow, earn, fetch, be due, be payable, be equal to something, a sum of money, calculate, find, work out, sum of, greater, less, more, etc. than the sum of its/​the parts, difficult, easy, do, get your sums right/​wrong
Antonymszero, nonedifference, division
Common mistakesConfused with 'counts' as a verb in singular vs plural forms., Using 'count' when referring to multiple examples instead of 'counts'.Confused with 'some' when speaking., Using 'sum' as a verb; it's mainly a noun., Overgeneralizing to non-mathematical uses.
Usage notesUse 'counts' when referring to how many items there are. Avoid in very formal writing. Can be used in various contexts such as counting items, importance, or ongoing actions.Use 'sum' in mathematics or when discussing totals. It's neutral in register, suitable for both formal and informal contexts. Avoid using it in non-numerical discussions.

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Counts

Frequently asked questions: Counts vs Sum

What's the difference between Counts and Sum?

Counts: The total number of something. Sum: The total amount when you add numbers together.

Which is more common: Counts and Sum?

Sum is the most common in everyday English.

Can you show an example of each?

Counts: The counts of the votes will be announced tomorrow. Sum: The sum of the two numbers is twenty.

Can I use Counts and Sum interchangeably?

Not always. Counts and Sum 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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