# Aar vs acre

> English confusable word pair

## The two words

### Aar
*name · IPA /ɑɹ/ · frequency rank #45,768*
A river in Switzerland, flowing 292 km from the glaciers of the Bernese Alps into the Rhine at Koblenz, on the Swiss–German border.

### acre
*noun · IPA /ˈeɪ.kə/ · frequency rank #7,877*
An English unit of land area (symbol: a. or ac.) originally denoting a day's ploughing for a yoke of oxen, now standardized as 4,840 square yards or 4,046.86 square metres.

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