# AAU vs ah

> English confusable word pair

## The two words

### AAU
*noun · frequency rank #43,489*
Initialism of assigned amount unit.

### ah
*intj · IPA /ɑː/ · frequency rank #2,325*
An expression of relief, relaxation, comfort, confusion, understanding, wonder, awe, etc. according to uttered inflection.

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