Speakur

Word Pronunciation & Dictionary

octadecahedron

Word Rarity Very rare

Frequency: Zipf frequency 0.00 in modern English

Syllables
oc-tadec-a-he-dron
IPA
23
Scrabble Score
14
Letters
5
Syllables
9
Unique Chars

Meaning

noun

A polyhedron with eighteen faces.

Example Sentences

Etymology

From octadeca- + -hedron.

Word Breakdown

Inflected Forms

octadecahedra (plural) octadecahedrons (plural)

Frequently Paired Words

octadecahedral

Synonyms

octakaidecahedron

Questions

What does octadecahedron mean?
A polyhedron with eighteen faces.
Where does octadecahedron come from?
From octadeca- + -hedron.

How to pronounce octadecahedron

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