# Rf vs RKI

> German confusable word pair

## The two words

### Rf
*abbrev · frequency rank #29,306*
Rutherfordium

### RKI
*abbrev · IPA [ɛʁkaːˈʔiː] · frequency rank #43,448*
Robert Koch-Institut

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