# AAA vs an

> English confusable word pair

## The two words

### AAA
*noun · frequency rank #9,990*
Initialism of abdominal aortic aneurysm.

### an
*article · IPA /ˈæn/ · frequency rank #30*
Form of a (all article senses).

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