The meaning of SUM is an indefinite or specified amount of money. How to use sum in a sentence.

sum noun (CALCULATION) [ C ] a calculation, especially a simple one, using such processes as adding, taking away, multiplying, or dividing:

Aug 1, 2025 · Use this calculator to find the sum of a data set. Enter values separated by commas or spaces. Or copy and paste lines of data from spreadsheets or text documents. See all …

In mathematics, the sum of two numbers is the number that is obtained when they are added together.

The sum can be defined as the result of the addition of two or more numbers. Learn the definition, how to find the sum on the number line, solved examples, and more.

Sum definition: the aggregate of two or more numbers, magnitudes, quantities, or particulars as determined by or as if by the mathematical process of addition..

In math, the summation symbol (∑) is used to denote the summation operation, which is a way of expressing the addition of a sequence of terms.

1. the aggregate of two or more numbers, magnitudes, quantities, or particulars as determined by or as if by the mathematical process of addition: The sum of 6 and 8 is 14.

sum noun [C] (TOTAL) the total amount that you get when you add two or more numbers together:

Dim Sum is usually a brunch or lunch meal, and you have many choices to choose from. Our homemade dumplings with a variety of fillings and our pork buns (either steamed or baked) …