dodecagonal

adj

By · According to Wiktionary data (CC BY-SA) ·

"dodecagonal" is a 11-letter English headword indexed on PlainSpell.

The verdict

“dodecagonal” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.

Unranked
below top-frequency English
11
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Having twelve sides and twelve angles

Corpus desk

Index EN-dodecagonal · dodecagonal · English

dodecagonal · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 11 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "D" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for dodecagonal
PropertyValue
Headworddodecagonal
LanguageEnglish
Part of speechAdjective
Letters11
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “dodecagonal” sits in English frequency

dodecagonalfalls outside the top-100,000 ranked English words, the long-tail zone of technical, archaic, or low-frequency vocabulary, exactly where readers second-guess spellings most.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

dodecagonal is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Having twelve sides and twelve angles".

No generated misspelling entries exist for dodecagonal in our index, since its letter sequence doesn't invite the usual edit-distance slips. No close-neighbour confusable shows up for this headword in our dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From dodecagon + -al. The correct English form is dodecagonal, spelled D-O-D-E-C-A-G-O-N-A-L.

Definition

  1. 1
    Having twelve sides and twelve angles

Etymology

From dodecagon + -al.

This word in other languages

dodecagonal(Español)dodécagonal(Français)zwölfeckig(Deutsch)

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

How do you spell "dodecagonal"?
"dodecagonal" is spelled D-O-D-E-C-A-G-O-N-A-L.
What does "dodecagonal" mean?
As an adjective, "dodecagonal" means: Having twelve sides and twelve angles
What is the origin of the word "dodecagonal"?
From dodecagon + -al. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

What to do next

You've looked up "dodecagonal". Here's where to go from here.

  • Browse more English words in the "D" letter cohort. D–Z browse
  • PlainSpell rotates a curated Word of the Day from the English corpus, a passive way to discover vocabulary. Word of the Day

PlainSpell is a reference corpus, not spelling advice. Verify unusual forms in context.

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.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list