English edit

Etymology edit

oct- (eight) +‎ -illion

Pronunciation edit

  • (UK) IPA(key): /ɒkˈtɪl.iː.ən/
  • (file)
  • Rhymes: -ɪljən
  • Hyphenation: oct‧il‧li‧on, oc‧til‧li‧on

Numeral edit

octillion (plural octillions)

  1. (US, modern Britain and Australia, short scale) A thousand trillion trillion, a billion billion billion: 1 followed by 27 zeros, 1027.
    • 2019, Bill Bryson, The Body: A Guide for Occupants, Black Swan (2020), pages 5–6:
      Altogether it takes seven billion billion billion (that’s 7,000,000,000,000,000,000,000,000,000, or seven octillion) atoms to make you.
  2. (dated Britain and Australia, long scale) A trillion quintillion: 1 followed by 48 zeros, 1048.

Synonyms edit

Translations edit

The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.

See also edit

Anagrams edit

French edit

French numbers (edit)
 ←  1042  ←  1045 1048 1051  →  1054  → 
    Cardinal (traditional spelling): un octillion
    Cardinal (post-1990 spelling): un-octillion
    Ordinal: octillionième

Etymology edit

From oct- (eight) +‎ -illion.

Pronunciation edit

Numeral edit

octillion m (plural octillions)

  1. quindecillion (1048)
  2. (dated) octillion (1027)

Further reading edit