# Pf vs Pro

> German confusable word pair

## The two words

### Pf
*abbrev · frequency rank #22,463*
Pfennig

### Pro
*abbrev · frequency rank #414*
Prolin, eine Aminosäure

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