octillion
Syllables: oct·il·li·onUK/ɒkˈtɪl.iː.ən/
octillion numeral: a thousand trillion trillion, a billion billion billion: 1 followed by 27 zeros, 10²⁷.
Numeral
octillion (plural octillions)
- A thousand trillion trillion, a billion billion billion: 1 followed by 27 zeros, 10²⁷.
- 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.2019, Bill Bryson, The Body: A Guide for Occupants, Black Swan (2020), pages 5–6
- 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...2023 October 9, Dennis Overbye, “The Science Nobel Winners Were Short and Fast”, in The New York Times, archived from the original on 12 Oct 2023
- A trillion quintillion: 1 followed by 48 zeros, 10⁴⁸.
octillion meaning in Malay
octillion in Malay
- a thousand trillion trillion, 10
- oktilion
Synonyms of octillion
- 1027
- 1048
Forms of octillion
| plural | octillions |
|---|
Origin of octillion
From French octillion. By surface analysis, oct- (“eight”) + -illion.
Words formed from octillion
Words that rhyme with octillion
- pavilion
- vermilion
- pillion
- billion
- novemdecillion
- quintillion
- trillion
- Brazilian
- Castilian
- centillion
- decillion
- duodecillion
48 more rhymesFewer rhymes
- duovigintillion
- million
- nonillion
- octodecillion
- quadrillion
- quattuordecillion
- quattuorvigintillion
- quindecillion
- septendecillion
- septillion
- sexdecillion
- sextillion
- tredecillion
- trevigintillion
- trigintillion
- undecillion
- unvigintillion
- duotrigintillion
- gazillion
- gillian
- gillion
- godzillion
- gorillion
- Jillian
- jillion
- Kabylian
- Luxulyan
- mandilion
- mandylion
- Maximilian
- millillion
- millinillion
- novemtrigintillion
- novemvigintillion
- octogintillion
- octotrigintillion
- octovigintillion
- quadragintillion
- quattuortrigintillion
- quinquagintillion
- quinvigintillion
- septentrigintillion
- septenvigintillion
- sextrigintillion
- sexvigintillion
- squillion
- untrigintillion
- vigintillion
Questions about octillion
- What does octillion mean?
- Octillion means a thousand trillion trillion, a billion billion billion: 1 followed by 27 zeros, 10²⁷.
- What is octillion in Malay?
- Octillion in Malay is oktilion. See Octillion meaning in Malay.
- What part of speech is octillion?
- Octillion is a numeral.
- How do you pronounce octillion?
- Octillion is pronounced /ɒkˈtɪl.iː.ən/ (UK).
Words near octillion in the dictionary
Source and license
Adapted from Wiktionary: octillion (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:
Pronunciation audio from Wikimedia Commons, each file under its own free license: en-au-octillion.ogg.
Cite this entry: “octillion.” Word.ws, https://word.ws/octillion. Based on Wiktionary, CC BY-SA 4.0.