# pen vs Phi

> German confusable word pair

## The two words

### pen
*noun · IPA [pɛn] · frequency rank #8,441*
der Füller, Schreibstift

### Phi
*noun · IPA [fiː] · frequency rank #47,646*
einundzwanzigster Buchstabe des griechischen Alphabets

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/de/vs/pen-vs-phi