# Cass vs coos

> 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.

### coos
*verb · IPA /kuːz/ · frequency rank #39,755*
third-person singular simple present indicative of coo

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