# A3 vs ad

> French confusable word pair

## The two words

### A3
*noun · IPA \ɑ.tʁwa\ · frequency rank #20,334*
Format de papier mesurant 420 mm × 297 mm.

### ad
*noun · IPA \æd\ · frequency rank #5,098*
Pub, publicité ; réclame.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/fr/vs/a3-vs-ad