nonagon
/ˈnɑn.ə.ɡɑn/
"nonagon" is a 7-letter English headword indexed on PlainSpell.
The verdict
“nonagon” is uncommon English (outside the top frequency list), classed as a noun. The kind of spelling people second-guess.
- Unranked
- below top-frequency English
- 7
- letters
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - A polygon with nine sides and nine angles; an enneagon.
| Property | Value |
|---|---|
| Headword | nonagon |
| Language | English |
| Part of speech | Noun |
| IPA | /ˈnɑn.ə.ɡɑn/ |
| Letters | 7 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “nonagon” sits in English frequency
Rare enough to double-check
nonagon is uncommon English outside the top frequency list, classed as anoun, transcribed /ˈnɑn.ə.ɡɑn/. Rarity is why readers land here mid-draft. Gloss: "A polygon with nine sides and nine angles; an enneagon.".
No generated misspelling entries exist for nonagon in our index, a straightforward case of a spelling with little room for common typos. This headword has no recorded confusable partner, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.
Etymologically, the entry records: From nona- + -gon. The correct English form is nonagon, spelled N-O-N-A-G-O-N.
Definition
- 1A polygon with nine sides and nine angles; an enneagon.
Etymology
From nona- + -gon.
This word in other languages
Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.
Frequently Asked Questions
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Using “nonagon”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is N-O-N-A-G-O-N - every other letter order is a misspelling in standard orthography.
- Say it as /ˈnɑn.ə.ɡɑn/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.