# nonagon

> English word · Noun · IPA /ˈnɑn.ə.ɡɑn/

## Definitions
1. A polygon with nine sides and nine angles; an enneagon.

## Etymology
From nona- + -gon.

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