# RSA vs run

> English confusable word pair

## The two words

### RSA
*noun · frequency rank #24,578*
Initialism of Responsible Service of Alcohol (a qualification and permit for bar staff).

### run
*verb · IPA /ɹʌn/ · frequency rank #309*
To move swiftly.

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