Meanings
plural quintillions
- Either of two very large amounts:
- AustralianBritishUSmodernshort scaleA 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.
2014, “Small Data: Those big numbers keep on coming”, in BBC News Magazine Monitor, BBC2 more examples
“I’m not sure I understand why we have to send a quadrillion-credit mission to another galaxy.” He looked fleetingly amused. “Quintillion... and we don’t have a choice, Harper. Any of us, really, but humanity especially.”
2017 November, N. K. Jemisin, Mac Walters, chapter 1, in Mass Effect Andromeda: Initiation, 1st edition (Science Fiction), Titan Books, →ISBN, →OCLC, page 32You are currently logged on to the largest version of the internet that has ever existed. By clicking and scrolling, you’re one of the 5 billion–plus people contributing to an unfathomable array of networked information—quintillions of bytes produced each day.
2023 December 18, Charlie Warzel, “Nobody Knows What’s Happening Online Anymore”, in The AtlanticSynonyms: trillion[long scale]]>
- colloquialexcessiveAn unspecified very large number.
Near-synonyms: gazillion; see also Thesaurus:zillion
1 more example
He had like a quintillion excuses for why he couldn't meet his obligation to me.
Synonyms: gazillion
plural quintillions
- excessivefigurativelyslangAny very large number, exceeding normal description.
Synonyms & antonyms
numeralA billion billion: 1 followed by eighteen zeros, 10¹⁸; one million million million.
numeralA million quadrillion: 1 followed by 30 zeros, 10³⁰.
numeralAn unspecified very large number.
Origin
- Frenchquintillion
- Englishquintillion
From French quintillion. By surface analysis, quint- (“five”) + -illion.
More words from French
Full word history & related roots →Translations
Catalan trilió, quintilió
- trilióa billion billion, 1018 — see also trillion
- quintilióa million quadrillion, 1030 — see also nonillion
Chinese Mandarin 百亿亿
- 百亿亿a billion billion, 1018 — see also trillion
Dutch triljoen, quintiljoen
- triljoena billion billion, 1018 — see also trillion
- quintiljoena million quadrillion, 1030 — see also nonillion
Esperanto triiliono, kviniliono
- triilionoa billion billion, 1018 — see also trillion
- kvinilionoa million quadrillion, 1030 — see also nonillion
Finnish triljoona, kvintiljoona
- triljoonaa billion billion, 1018 — see also trillion
- kvintiljoonaa million quadrillion, 1030 — see also nonillion
French trillion, milliard de milliards
- trilliona billion billion, 1018 — see also trillion
- milliard de milliardsa billion billion, 1018 — see also trillion
- quintilliona million quadrillion, 1030 — see also nonillion
- milliardany very large number
- milliardsany very large number
- millionany very large number
- millionsany very large number
German Trillion, Quintillion
- Trilliona billion billion, 1018 — see also trillion
- Quintilliona million quadrillion, 1030 — see also nonillion
- Quinquilliona million quadrillion, 1030 — see also nonillion
Greek πεντάκις εκατομμύριο, εννεάκις εκατομμύριο
- πεντάκις εκατομμύριο (pentákis ekatommýrio)a billion billion, 1018 — see also trillion
- εννεάκις εκατομμύριο (enneákis ekatommýrio)a million quadrillion, 1030 — see also nonillion
Hungarian trillió
- trillióa billion billion, 1018 — see also trillion
Icelandic trilljón
- trilljóna billion billion, 1018 — see also trillion
Italian trilione, quintilione
- trilionea billion billion, 1018 — see also trillion
- quintilionea million quadrillion, 1030 — see also nonillion
Japanese 百京, 百穣
- 百京 (hyakkei)a billion billion, 1018 — see also trillion
- 百穣 (hyaku-jō)a million quadrillion, 1030 — see also nonillion
Korean 백경
- 백경 (baekgyeong)a billion billion, 1018 — see also trillion
Malay kuintilion
- kuintiliona billion billion, 1018 — see also trillion
Polish trylion
- tryliona billion billion, 1018 — see also trillion
Portuguese trilião m quintilhão, quintilião
- trilião m quintilhãoa billion billion, 1018 — see also trillion
- quintiliãoa million quadrillion, 1030 — see also nonillion
- nonilhãoa million quadrillion, 1030 — see also nonillion
- zilhãoany very large number
Russian квинтиллио́н
- квинтиллио́н (kvintillión)a billion billion, 1018 — see also trillion
Spanish trillón, quintillón
- trillóna billion billion, 1018 — see also trillion
- quintillóna billion billion, 1018 — see also trillion
- quintillóna million quadrillion, 1030 — see also nonillion
Swedish triljon
- triljona billion billion, 1018 — see also trillion
Turkish kentilyon, pekken
- kentilyona billion billion, 1018 — see also trillion
- pekkena billion billion, 1018 — see also trillion
Ukrainian квінтильйон
- квінтильйон (kvintylʹjon)a million quadrillion, 1030 — see also nonillion
Welsh cwintiliwn
- cwintiliwna billion billion, 1018 — see also trillion
Rhymes & wordplay
Rhymes with quintillion
Cite this entry
quintillion. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/quintillion
“quintillion.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/quintillion. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “quintillion,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/quintillion.
Source: quintillion on Wiktionary, CC BY-SA 4.0.