# enneagon

> English word · Noun · IPA /ˈɛ.niː.ə.ɡən/

## Definitions
1. A polygon with nine sides; a nonagon.

## Etymology
From ennea- + -gon.

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