Word Pronunciation & Dictionary

octodecillion

/ˌɒktoʊdəˈsɪl.i.ən/

Word Rarity Very rare

Frequency: Zipf frequency 0.00 in modern English

Syllables
oc-todecil-lion
IPA
/ˌɒktoʊdəˈsɪl.i.ən/
18
Scrabble Score
13
Letters
3
Syllables
8
Unique Chars

Meaning

num

10⁵⁷.

American usage

num

10¹⁰⁸.

Dated

Example Sentences

Etymology

From Latin octodec(im) (“eighteen”) + -illion; compare tredecillion, quattuordecillion, etc. By surface analysis, octo- + decillion.

Word Breakdown

Usage

Inflected Forms

Phrases

Previous: septendecillion. Next: novemdecillion.

Frequently Paired Words

Previous: septendecillion. Next: novemdecillion.

Rhymes With

Questions

How do you pronounce octodecillion?
The recorded pronunciation is /ˌɒktoʊdəˈsɪl.i.ən/.
What does octodecillion mean?
10⁵⁷.
Where does octodecillion come from?
From Latin octodec(im) (“eighteen”) + -illion; compare tredecillion, quattuordecillion, etc. By surface analysis, octo- + decillion.

How to pronounce octodecillion

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