# ROT13

> English word · Noun

## Definitions
1. A simple Caesar cipher where each letter is replaced by the letter 13 positions beyond it in the alphabet (wrapping at Z to A).

## Etymology
ROT is short for rotate.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/rot13