Definition of sum
1 : an indefinite or specified amount of money
2 : the whole amount : aggregate
3 : the utmost degree : summit <reached the sum of human happiness>
4a : a summary of the chief points or thoughts : summation <the sum of this criticism follows — C. W. Hendel>b : gist <the sum and substance of an argument>
5a (1) : the result of adding numbers <the sum of 5 and 7 is 12> (2) : the limit of the sum of the first n terms of an infinite series as n increases indefinitelyb : numbers to be added; broadly : a problem in arithmeticc (1) : disjunction 2 (2) : union 2d
: in short : briefly
Origin of sum
Middle English summe, from AngloFrench sume, somme, from Latin summa, from feminine of summus highest; akin to Latin super over — more at over
First Known Use: 14th century
Examples of sum in a sentence
<can sum figures in his head faster than I can punch them into a calculator>
14th Century
First Known Use of sum
14th century
Origin of sum
Uzbek so'm ruble
First Known Use: 1993
SUM Defined for Kids
Definition of sum for Students
1 : the result obtained by adding numbers <The sum of 4 and 5 is 9.>
2 : a problem in arithmetic
3 : a quantity of money <We donated a small sum.>
4 : the whole amount <Two trips is the sum of my travel experience.>
Learn More about sum

Thesaurus: All synonyms and antonyms for "sum" Spanish Central: Translation of "sum" Nglish: Translation of "sum" for Spanish speakers Britannica English: Translation of "sum" for Arabic speakers
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