octillion

English

Etymology

From French octillion.^[1] By surface analysis, oct- (“eight”) +‎ -illion.

Pronunciation

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

Numeral

octillion (plural octillions)

(US, modern British 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.
- 2023 October 9, Dennis Overbye, “The Science Nobel Winners Were Short and Fast”, in The New York Times‎^[1], archived from the original on 12 October 2023:
  We humans are so stuck in the middle of the cosmic scales — in average height, one-hundredth of one-septillionth (10^-24) the size of the observable universe, and with typical life spans of a couple octillion attoseconds. And an attosecond is an eternity compared with the lifetime of the elusive Higgs boson, a subatomic particle that exists for one-thousandth of an attosecond before decaying.
(dated British and Australia, long scale) A trillion quintillion: 1 followed by 48 zeros, 10⁴⁸.

Synonyms

(10²⁷): a long scale quadrilliard
(10⁴⁸): a short scale quindecillion

Derived terms

Translations

a thousand trillion trillion, 10²⁷

Armenian: հազար քառիլիոն (hazar kʻaṙilion)
Esperanto: kvariliardo
Finnish: kvadriljardi
French: quadrilliard (fr)
German: Quadrilliarde (de)
Hungarian: kvadrilliárd (hu)
Icelandic: kvaðrilljarður f
Italian: quatriliardo
Japanese: 千秭 (せんじょ, senjo / せんし, senshi)
Malay: oktilion (ms)
Maltese: ottiljun, kwadriljard m
Polish: kwadryliard (pl) m
Portuguese: octilhão (pt)
Russian: октиллион (ru) m (oktillion)
Spanish: mil cuatrillones
Turkish: oktilyon
Ukrainian: октильйон (uk) (oktylʹjon)

a trillion quintillion, 10⁴⁸ — see also quindecillion

Chinese:
Mandarin: 一極 / 一极
Esperanto: okiliono
Finnish: oktiljoona (fi)
French: octillion (fr) m
German: Oktillion (de) f
Russian: квиндециллион (ru) m (kvindecillion)
Spanish: octillón (es)

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

Translations to be checked