# Cass

> English word · Proper noun · frequency rank #14,714

## Definitions
1. A diminutive of the female given name Cassandra of medieval origin, later also used for Cassidy, and Catherine with its variant forms.
2. A surname originating as a matronymic.
3. A male given name transferred from the surname.
4. A diminutive of the male given name Cassius.
5. A number of places:
6. A number of places:
7. A number of places:
8. A number of places:

## Etymology
* As an English surname, from a pet form of Cassandra.
* As an Irish surname, from Ó Cais (“descendant of the curly-haired one”), from cas (“curly”).

## Easily confused with
- **cs** (https://plainspell.com/en/vs/cass-vs-cs)
- **cat** (https://plainspell.com/en/vs/cass-vs-cat)
- **CBS** (https://plainspell.com/en/vs/cass-vs-cbs)
- **cos** (https://plainspell.com/en/vs/cass-vs-cos)
- **CDs** (https://plainspell.com/en/vs/cass-vs-cds)
- **cis** (https://plainspell.com/en/vs/cass-vs-cis)
- **CSS** (https://plainspell.com/en/vs/cass-vs-css)
- **CPS** (https://plainspell.com/en/vs/cass-vs-cps)
- **CMS** (https://plainspell.com/en/vs/cass-vs-cms)
- **CVS** (https://plainspell.com/en/vs/cass-vs-cvs)
- **CSI** (https://plainspell.com/en/vs/cass-vs-csi)
- **CES** (https://plainspell.com/en/vs/cass-vs-ces)
- **CSR** (https://plainspell.com/en/vs/cass-vs-csr)
- **CSA** (https://plainspell.com/en/vs/cass-vs-csa)
- **CFS** (https://plainspell.com/en/vs/cass-vs-cfs)
- **CST** (https://plainspell.com/en/vs/cass-vs-cst)
- **CNS** (https://plainspell.com/en/vs/cass-vs-cns)
- **CCS** (https://plainspell.com/en/vs/cass-vs-ccs)
- **CSU** (https://plainspell.com/en/vs/cass-vs-csu)
- **CRS** (https://plainspell.com/en/vs/cass-vs-crs)

## Common misspellings (3)
`acss`, `ccass`, `csas`

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