# a's vs AC

> English confusable word pair

## The two words

### a's
*noun · IPA /ˈeɪz/ · frequency rank #15,090*
plural of the letter a

### AC
*noun · frequency rank #4,646*
Initialism of absolute ceiling.

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