# Definition of sum

### Definitions

noun

1.

b. the cardinality of the union of disjoint sets whose cardinalities are the given numbers

2. one or more columns or rows of numbers to be added, subtracted, multiplied, or divided

3. mathematics the limit of a series of sums of the first n terms of a converging infinite series as n tends to infinity

5. a quantity, esp of money ⇒ he borrows enormous sums

7. a less common word for summary

verbWord forms: sums, summing or summed

10. (often foll by up) to add or form a total of (something)

Collins English Dictionary. Copyright © Harper Collins Publishers

### Word origin of 'sum'

C13 summe, from Old French, from Latin summa the top, sum, from summus highest, from superus in a higher position; see super### Definitions

nounWord forms: plural sumy (ˈsʊmɪ
)

the standard monetary unit of Uzbekistan, divided into 100 tiyin

Collins English Dictionary. Copyright © Harper Collins Publishers

Word forms: sums
, summing
, summed

### Definitions

1. countable noun

A sum of money is an amount of money. [+ of] ⇒ Large sums of money were lost. [+ of] ⇒ Even the relatively modest sum of £50,000 now seems beyond his reach.

3. singular noun

In mathematics, the sum of two numbers is the number that is obtained when they are added together. [+ of] ⇒ The sum of all the angles of a triangle is 180 degrees.

4. singular noun

The sum of something is all of it. sum total [+ of] ⇒ 'Public opinion' is only the sum of the views of thousands of people like yourself. ⇒ The sum of evidence points to the crime resting on them. ⇒ Has it, in its 30 years, added much to the sum of human happiness?

5. → See also lump sum

6.

→ in sum

► → sum up

COBUILD Advanced English Dictionary. Copyright © Harper Collins Publishers

### Example sentences containing 'sum'

Still, it was outrageous to think of having to pay out even a relatively small sum for Laura's own prints. THE IMAGE OF LAURAThis meant the payment of a large sum in cash would never show up on their bank statements. COVER STORYAlso on board were trained negotiators, a full medical team including surgeons, together with government officials carrying the ransom sum. A SONG AT TWILIGHTStooping to draw open a drawer, pull out a stack of bills, begin counting out a sum. OFF THE CHART## Trends of 'sum'

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## Source

*Definition of*Collins English Dictionary

**sum**from the
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