Word Pronunciation & Dictionary

pentadecagon

/ˌpɛntəˈdɛkəɡən/

Word Rarity Very rare

Frequency: Zipf frequency 0.00 in modern English

Syllables: pen-tadecagon
IPA: /ˌpɛntəˈdɛkəɡən/

18

Scrabble Score

12

Letters

2

Syllables

9

Unique Chars

Meaning

noun

A polygon with fifteen sides.

Example Sentences

"In ⊙ O, draw chord AB equal to r. Draw chord AC equal to Vt (which is the side of a regular decagon). CB is now one side of the regular pentadecagon."

Etymology

From pentadeca- + -gon.

Word Breakdown

Prefix: pentadeca
Suffix: gon

Inflected Forms

pentadecagons (plural)

Frequently Paired Words

pentadecagonal

Synonyms

15-gon quindecagon

Questions

How do you pronounce pentadecagon?: The recorded pronunciation is /ˌpɛntəˈdɛkəɡən/.
What does pentadecagon mean?: A polygon with fifteen sides.
Where does pentadecagon come from?: From pentadeca- + -gon.

How to pronounce pentadecagon

Open the pronunciation page — Open the Speakur entry for “pentadecagon”.
Read the phonetic spelling — Read the IPA spelling (/ˌpɛntəˈdɛkəɡən/) so you know which sounds to aim for.
Play the audio — Click Play to hear reference audio for “pentadecagon”.
Repeat and practice — Say “pentadecagon” aloud, matching stress and vowels until it feels natural.