# cas vs co

> Spanish confusable word pair

## The two words

### cas
*noun · IPA [ˈkas] · frequency rank #19,656*
Caso.

### co
*noun · IPA [ˈko] · frequency rank #2,386*
Chico, ese o tío.

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