# CO2 vs CPU

> German confusable word pair

## The two words

### CO2
*noun · IPA [ˌt͡seːoˈt͡svaɪ̯] · frequency rank #4,186*
chemische Summenformel von Kohlendioxid

### CPU
*noun · IPA [t͡seːpeːˈʔuː] · frequency rank #11,404*
Hauptprozessor in einem Computer

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/de/vs/co2-vs-cpu