# Cass vs CMS

> English confusable word pair

## The two words

### Cass
*name · frequency rank #14,714*
A diminutive of the female given name Cassandra of medieval origin, later also used for Cassidy, and Catherine with its variant forms.

### CMS
*name · frequency rank #18,042*
Initialism of Chicago Manual of Style.

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