# CU vs cz

> English confusable word pair

## The two words

### CU
*noun · frequency rank #13,895*
Initialism of control unit.

### cz
*conjunction · frequency rank #30,387*
Abbreviation of 'cause (because).

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