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decagon

/ˈdɛ.kə.ɡɑn/noun

decagon is spelled D-E-C-A-G-O-N: 7 letters and 3 syllables. It appears about once in every 68 million words in written English, the 258,950th most frequent word form (wordfreq, 2021 data). As a noun, decagon means “A polygon with ten sides and ten angles” (English Wiktionary, September 2026). The plural of decagon is decagons.

How many letters and syllables are in decagon?

Letters7: D-E-C-A-G-O-N
Syllables3 (from its pronunciation)
In writingabout once in every 68 million words; the 258,950th most frequent word form
Wrong spellings searchednone measured in search
Rhymes with

Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); rhymes and same-letter words are computed by PlainSpell from its own word list.

How common is decagon?

Decagon appears about once in every 68 million words in written English, the 258,950th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How do you pronounce decagon?

  • US /ˈdɛ.kə.ɡɑn/
  • UK /ˈdɛ.kə.ɡən/

Decagon has 3 syllables (counted from the pronunciation).

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-ca-decagon.oga, Wikimedia Commons (author and licence on each file's page).

What rhymes with decagon?

One word on PlainSpell end in the same sounds as decagon from its last stressed vowel (/ɛkəɡɑn/):

Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).

Forms of decagon

  • decagons plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What does decagon mean?

The meanings the English Wiktionary records, quoted as written there (source below).

noun

  1. 1

    A polygon with ten sides and ten angles.

    Meronyms: angle, side; see also Thesaurus:polygon

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Decagon in Spanish, French, German and Portuguese

In the sense polygon with ten sides:

LanguageWords
Frenchdécagone
GermanZehneck
Portuguesedecágono
Spanishdecágono

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.

Where does decagon come from?

From deca- + -gon.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What to look up after decagon