The term "SUM" refers to the result of adding two or more numbers together. In mathematics, it is a fundamental operation that combines values to produce a total. For example, if you add 2 and 3, the SUM is 5. This concept is widely used in various fields, including finance, science, and everyday calculations. In computer programming, "SUM" can also refer to functions or methods that perform addition. Many programming languages, such as Python and Java, have built-in functions to calculate the SUM of a list or array of numbers. This makes it easier for developers to handle numerical data efficiently.