# summation

/səˈmeɪʃən/ (US) · /sʌmˈeɪʃən/ (UK) · CEFR C1 · Noun

Source: https://englishreference.com/word/summation
Updated: 2026-05-19

## Definition

the result of adding several numbers or amounts together. It is the total you get when you finish a calculation.

For teachers: the result of the addition of two or more numbers or amounts. Often used in mathematical contexts to describe the final value of a series or a set of data.

## Examples

- The summation of the two numbers is ten.
- After calculating the total sales for each quarter, the accountant provided the summation of the annual revenue.
- The summation of the series converges to a finite value, demonstrating that the infinite sequence of terms eventually stabilizes at a specific point.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.
