# quadrillion
## English
### Etymology

From French quadrillion, from quadri- (“four”) +‎ -illion.

### Pronunciation

* (US) IPA: /kwɑˈdɹɪl.i.ən/, /kwɑˈdɹɪl.jən/
* (General Australian, Scotland) IPA: /kwɔˈdɹɪl.jən/
* (New Zealand) IPA: /kwɔˈdɹɘl.jɘn/
* (UK, Ireland, General South African) IPA: /kwɒˈdɹɪl.jən/, /kwɒˈdʒɹɪl.jən/ (the latter may be non-standard)
* Audio (US):(file)
* Audio (General Australian):(file)
* Rhymes: -ɪljən

### Numeral

quadrillion (plural quadrillions)
* (US, modern British and Australian, short scale) A thousand trillion (logic: 1,000 × 1,000$^4$): 1 followed by fifteen zeros, 10$^{15}$.
** 2013 July, Microsoft Network, Richest Man of All-Time Dramatically Gained and Lost His Entire Fortune in Just 2 Minutes‎:A man named Chris Reynolds was credited $92 quadrillion USD on his paypal account, "This unexpected influx of wealth elevated him to the status of the richest person on the planet and the only quadrillionaire to have ever existed". Following this, after the man reported this error and it was fixed, "PayPal owned up to their mistake and thanked the richest man of all time for understanding the situation, saying: 'This is obviously an error and we appreciate that Mr. Reynolds understood this was the case'".
** 2017 November, N. K. Jemisin, Mac Walters, chapter 1, in Mass Effect Andromeda: Initiation‎, 1st edition (Science Fiction), Titan Books, →ISBN, →OCLC, page 32:“I’m not sure I understand why we have to send a quadrillion-credit mission to another galaxy.” He looked fleetingly amused. “Quintillion... and we don’t have a choice, Harper. Any of us, really, but humanity especially.”
** 2022 September 19, P. Schultheiss et al., “The abundance, biomass, and distribution of ants on Earth”, in Proceedings of the National Academy of Sciences of the United States of America, page 1, column 2:Integrating data from all continents and major biomes, we conservatively estimate 20 × 10$^{15}$ (20 quadrillion) ants on Earth, with a total biomass of 12 megatons of dry carbon.
* (dated, UK, Australia, long scale) A million trillion (logic: 1,000,000$^4$): 1 followed by twenty-four zeros, 10$^{24}$.

#### Synonyms

* (10$^{15}$): a long scale billiard
* (10$^{24}$): a short scale septillion

#### Coordinate terms

* thousand
* million
* milliard
* thousand million
* billion
* trillion
* quintillion
* sextillion

#### Descendants

* → Welsh: cwadriliwn

#### Translations

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

#### See also

* (10$^{15}$): peta-
* (10$^{24}$): yotta-
* (10$^{15}$): Previous: trillion. Next: quintillion.
* (10$^{24}$): Previous: trilliard. Next: quadrilliard.

### Noun

quadrillion (plural quadrillions)
* (figuratively, slang, hyperbolic) Any very large number, exceeding normal description.
** 1999, Beverly Lewis, A Perfect Match, Bethany House Publishers, page 23:They'd never understand — not in a quadrillion years.
** 2000, J. D. Maples, Trojan Steers, Lomaland Books Inc, page 58:Me, I never refuse a meal, and believe me I seen some heavy weather. I musta flown a quadrillion miles and I never did have a problem.
** 2004, Arthur Kopecky, New Buffalo: journals from a Taos commune, UNM Press, page 143:The sky is so absolutely clear with a quadrillion stars.
** 2006, Evelyn Caro, The Flickering Attic Window, Trafford Publishing, page 8:She's named after this famous singer from a quadrillion years ago.

#### Synonyms

* (any very large number): bajillion, bazillion, billion, dillion, fantillion, gadzillion, gagillion, gajillion, gazillion, godzillion, googillion, grillion, hojillion, hundred and one, jillion, kabillion, kajillion, katrillion, killion, kazillion, million, million and one, quintillion, robillion, skillion, squidillion, squillion, thousand and one, trillion, umptillion, zillion

#### Translations
## French
### Etymology

Inherited from Middle French quadrillion, from quadri- (“four”) +‎ -illion.

### Pronunciation

* IPA: /kwa.dʁi.ljɔ̃/; /ka.dʁi.ljɔ̃/
* Audio:(file)

### Numeral

quadrillion m (plural quadrillions)
* septillion (10$^{24}$)
* (dated) quadrillion (10$^{15}$)

### Further reading

* “quadrillion”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.

## Middle French
### Noun

quadrillion m (plural quadrillions)
* quadrillion (10$^{24}$)