# quintillion

> English word · Numeral · IPA /kwɪnˈtɪljən/

## Definitions
1. Either of two very large amounts:
2. Either of two very large amounts:
3. An unspecified very large number.

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

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/quintillion