quintillion

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quintillion

  • /kwɪnˈtɪljən/

Rhymes with -ɪljən

Where it comes from

From French quintillion. By surface analysis, quint- (“five”) + -illion.

number quintillions

  1. Australian, British, US, modern A billion billion: 1 followed by eighteen zeros, 10¹⁸; one million million million. Last week, we used[…]the BBC News website's biggest number: 9,223,372,036,854,775,808, that's 9.2 quintillion[…][the maximum video viewer count on YouTube's] updated counter software.

    Similar: trillion[long scale]]>

  2. Australia, UK, dated A million quadrillion: 1 followed by 30 zeros, 10³⁰.

    Similar: nonillion

  3. colloquial, excessive An unspecified very large number. Near-synonyms: gazillion; see also Thesaurus:zillion

    Similar: gazillion

noun quintillions

  1. excessive, figuratively, slang Any very large number, exceeding normal description.

Translations

Every language

num a billion billion, 1018 — see also trillion

Españoltrillón, quintillón
한국어백경 baekgyeong
日本語百京 hyakkei
中文百亿亿
Portuguêstrilião m quintilhão
Françaistrillion, milliard de milliards
DeutschTrillion
Italianotrilione
Ελληνικάπεντάκις εκατομμύριο pentákis ekatommýrio
Русскийквинтиллио́н kvintillión

num a million quadrillion, 1030 — see also nonillion

Españolquintillón
日本語百穣 hyaku-jō
Portuguêsquintilião, nonilhão
Françaisquintillion
DeutschQuintillion, Quinquillion
Italianoquintilione
Ελληνικάεννεάκις εκατομμύριο enneákis ekatommýrio

noun any very large number

Portuguêszilhão
Françaismilliard, milliards, million, millions

Talk about this word

Cite this
MLA

"quintillion." Wiktionary, via Micwyn, micwyn.com/word/quintillion. Accessed 6 Nov. 2026.

APA

quintillion. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/quintillion

Chicago

"quintillion." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/quintillion.

BibTeX
@misc{quintillion_2026,
  title = {quintillion},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/quintillion},
  urldate = {2026-11-06}
}