quadrillion

/kwɑˈdɹɪl.i.ən/

More pronunciations (1)Fewer pronunciations

Australia/kwɔˈdɹɪl.jən/

quadrillion numeral: a thousand trillion (logic: 1,000 × 1,000⁴): 1 followed by fifteen zeros, 10¹⁵.

Numeral

quadrillion (plural quadrillions)

(Australian, British, US, modern, short scale) A thousand trillion (logic: 1,000 × 1,000⁴): 1 followed by fifteen zeros, 10¹⁵.
- 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...2013 July, Sylvia Silverstone, “Richest Man of All-Time Dramatically Gained and Lost His Entire Fortune in Just 2 Minutes”, in MSN, archived from the original on 17 Mar 2023
- “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 32
Synonyms:

1015
(Australia, UK, dated, long scale) A million trillion (logic: 1,000,000⁴): 1 followed by twenty-four zeros, 10²⁴.

Noun

quadrillion (plural quadrillions)

(excessive, figuratively, slang) Any very large number, exceeding normal description.
- They'd never understand — not in a quadrillion years.1999, Beverly Lewis, A Perfect Match, Bethany House Publishers, page 23
- 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.2000, J. D. Maples, Trojan Steers, Lomaland Books Inc, page 58
Synonyms:

bajillion, bazillion, billion, dillion, fantillion, gadzillion, gagillion, gajillion, gazillion, godzillion

quadrillion meaning in Malayalam, Sanskrit, Malay and Persian

quadrillion in Malayalam

quadrillion: ക്വാഡ്രില്യൺ kvāḍrilyaṇ

quadrillion in Sanskrit

a thousand trillion (1,000,000,000,000,000); a billiard: अन्त्य antya

quadrillion in Malay

a thousand trillion (1,000,000,000,000,000); a billiard: kuadrilion

quadrillion in Persian

a thousand trillion (1,000,000,000,000,000); a billiard: کوادریلیون kuâdrilion

More languagesFewer languages

quadrillion in Vietnamese: triệu tỷ, triệu tỷ tỷ

Examples of quadrillion in a sentence

Integrating data from all continents and major biomes, we conservatively estimate 20 × 10¹⁵ (20 quadrillion) ants on Earth, with a total biomass of 12 megatons of dry carbon.2022 September 19, P. Schultheiss et al., “The abundance, biomass, and distribution of ants on Earth”, in Proceedings of the National...
The sky is so absolutely clear with a quadrillion stars.2004, Arthur Kopecky, New Buffalo: journals from a Taos commune, UNM Press, page 143:
She's named after this famous singer from a quadrillion years ago.2006, Evelyn Caro, The Flickering Attic Window, Trafford Publishing, page 8:

All 10 example sentences with quadrillion

Synonyms of quadrillion

23 more synonymsFewer synonyms

All synonyms of quadrillion

Forms of quadrillion

Numeral
plural	quadrillions
Noun
plural	quadrillions

Origin of quadrillion

From French quadrillion, from quadri- (“four”) + -illion. By surface analysis, quadr- + -illion.

Words formed from quadrillion

Words that rhyme with quadrillion

48 more rhymesFewer rhymes

Questions about quadrillion

What does quadrillion mean?: Quadrillion means a thousand trillion (logic: 1,000 × 1,000⁴): 1 followed by fifteen zeros, 10¹⁵.
What is quadrillion in Malayalam?: Quadrillion in Malayalam is ക്വാഡ്രില്യൺ (kvāḍrilyaṇ). See Quadrillion meaning in Malayalam.
How do you use quadrillion in a sentence?: Integrating data from all continents and major biomes, we conservatively estimate 20 × 10¹⁵ (20 quadrillion) ants on Earth, with a total biomass of 12 megatons of dry carbon.
What part of speech is quadrillion?: Quadrillion can be a numeral or a noun.
How do you pronounce quadrillion?: Quadrillion is pronounced /kwɑˈdɹɪl.i.ən/ (US).

Words near quadrillion in the dictionary

Adapted from Wiktionary: quadrillion (page history and authors); ക്വാഡ്രില്യൺ (Malayalam) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated: 2026-09-02

Pronunciation audio from Wikimedia Commons, each file under its own free license: en-us-quadrillion.ogg, en-au-quadrillion.ogg.

Cite this entry: “quadrillion.” Word.ws, https://word.ws/quadrillion. Based on Wiktionary, CC BY-SA 4.0.