# arch vs aro

> English confusable word pair

## The two words

### arch
*noun · IPA /ɑɹt͡ʃ/ · frequency rank #6,865*
An inverted U shape.

### aro
*adjective · IPA /ˈæ.ɹəʊ/ · frequency rank #40,124*
Aromantic (not experiencing romantic attraction).

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