nonagon

== English == === Etymology === From nona- +‎ -gon. === Pronunciation === (US, Canada) IPA(key): /ˈnɑn.ə.ɡɑn/ (UK) IPA(key): /ˈnɒn.ə.ɡən/ Hyphenation: non‧a‧gon === Noun === nonagon (plural nonagons) (geometry) A polygon with nine sides and nine angles; an enneagon. ==== Synonyms ==== 9-gon enneagon ==== Related terms ==== nonagonal ==== Translations ====