# CID vs CO2

> German confusable word pair

## The two words

### CID
*abbrev · frequency rank #45,832*
(britisch) Criminal Investigation Department

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

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