# case vs cos

> German confusable word pair

## The two words

### case
*noun · IPA [keɪs] · frequency rank #7,447*
Fall m

### cos
*abbrev · frequency rank #29,065*
Kosinus

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