# Aar

> English word · Proper noun · IPA /ɑɹ/ · frequency rank #45,768

## Definitions
1. A river in Switzerland, flowing 292 km from the glaciers of the Bernese Alps into the Rhine at Koblenz, on the Swiss–German border.
2. A river in Germany that flows 50 km from the Taunus in Hesse into the Lahn at Diez, Rhineland-Palatinate.
3. A tributary in Hesse, Germany of the Dill river, itself a tributary of the Lahn.

## Etymology
From German Aare, probably from a Celtic language.

## Easily confused with
- **as** (https://plainspell.com/en/vs/aar-vs-as)
- **at** (https://plainspell.com/en/vs/aar-vs-at)
- **an** (https://plainspell.com/en/vs/aar-vs-an)
- **AM** (https://plainspell.com/en/vs/aar-vs-am)
- **AL** (https://plainspell.com/en/vs/aar-vs-al)
- **AD** (https://plainspell.com/en/vs/aar-vs-ad)
- **ah** (https://plainspell.com/en/vs/aar-vs-ah)
- **AP** (https://plainspell.com/en/vs/aar-vs-ap)
- **AC** (https://plainspell.com/en/vs/aar-vs-ac)
- **ai** (https://plainspell.com/en/vs/aar-vs-ai)
- **aw** (https://plainspell.com/en/vs/aar-vs-aw)
- **AR** (https://plainspell.com/en/vs/aar-vs-ar)
- **AU** (https://plainspell.com/en/vs/aar-vs-au)
- **AF** (https://plainspell.com/en/vs/aar-vs-af)
- **ag** (https://plainspell.com/en/vs/aar-vs-ag)
- **AK** (https://plainspell.com/en/vs/aar-vs-ak)
- **AZ** (https://plainspell.com/en/vs/aar-vs-az)
- **av** (https://plainspell.com/en/vs/aar-vs-av)
- **ay** (https://plainspell.com/en/vs/aar-vs-ay)
- **AE** (https://plainspell.com/en/vs/aar-vs-ae)

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/aar