# Fels vs fl

> German confusable word pair

## The two words

### Fels
*noun · IPA [fɛls] · frequency rank #11,867*
zusammenhängende Masse festen Gesteins (Singular 1)

### fl
*abbrev · frequency rank #13,360*
Femtoliter (= 10⁻¹⁵ l, ein billiardstel Liter)

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