Standard Lemma guide

enneagon

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • UK: /ˈɛ.niː.ə.ɡən/
  • Southern-England: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

A polygon with nine sides; a nonagon.

Definition source: English Wiktionary via Wiktextract

Topics: geometry, mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From ennea- + -gon.

Across languages

Translations

21 source translations are retained for this English entry.

  • Arabic: مَتْسَع (matsaʕ) — a polygon with nine sides; a nonagon
  • Catalan: enneàgon — a polygon with nine sides; a nonagon
  • Czech: devítiúhelník — a polygon with nine sides; a nonagon
  • East Frisian Low German: neegenkâant — a polygon with nine sides; a nonagon
  • Finnish: yhdeksänkulmio — a polygon with nine sides; a nonagon
  • French: ennéagone — a polygon with nine sides; a nonagon
  • North Frisian: Niigenhuk — a polygon with nine sides; a nonagon
  • Saterland Frisian: Njúgenkaant — a polygon with nine sides; a nonagon
  • West-Frisian: njoggenhoek — a polygon with nine sides; a nonagon
  • Galician: enneágono — a polygon with nine sides; a nonagon
  • German: Neuneck — a polygon with nine sides; a nonagon
  • Greek: εννεάγωνο (enneágono) — a polygon with nine sides; a nonagon
  • Hebrew: מתושע (metushá) — a polygon with nine sides; a nonagon
  • Japanese: 九角形 (kyūkakukei) — a polygon with nine sides; a nonagon
  • Korean: 구각형 (gugakhyeong) — a polygon with nine sides; a nonagon
  • Polish: dziewięciokąt — a polygon with nine sides; a nonagon
  • Polish: dziewięciobok — a polygon with nine sides; a nonagon
  • Russian: девятиугольник (devjatiugolʹnik) — a polygon with nine sides; a nonagon
  • Spanish: eneágono — a polygon with nine sides; a nonagon
  • Tibetan: ཟུར་དགུའི་དབྱིབས (zur dgu'i dbyibs) — a polygon with nine sides; a nonagon
  • Tibetan: ཟུར་དགུ (zur dgu) — a polygon with nine sides; a nonagon