# octagon vs octagonal

> English confusable word pair

## The two words

### octagon
*noun · IPA /ˈɒktəɡ(ə)n/ · frequency rank #32,520*
A polygon with eight sides and eight angles.

### octagonal
*adjective · IPA /ɑkˈtæɡənəl/ · frequency rank #44,380*
Shaped like an octagon, in having eight sides and eight angles.

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