# checksum

> English word · Noun · frequency rank #68,923

## Definitions
1. A number, derived by applying a suitable algorithm to some data, used to check whether errors have occurred in transmission, storage or data entry.

## Etymology
From check + sum.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/checksum