quintillion.
Either of two very large amounts:
Meaning & usage
Either of two very large amounts: A billion billion: 1 followed by eighteen zeros, 10¹⁸; one million million million.
Either of two very large amounts: A million quadrillion: 1 followed by 30 zeros, 10³⁰.
An unspecified very large number.
He had like a quintillion excuses for why he couldn't meet his obligation to me.
Where this word comes from
From French quintillion. By surface analysis, quint- (“five”) + -illion.
Any very large number, exceeding normal description.
Where this word comes from
From French quintillion. By surface analysis, quint- (“five”) + -illion.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.