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Word of the Day Wednesday, June 10, 2026

undecillions

/ˌʌndɪˈsɪljənz/ noun · British & US
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What does undecillions mean?

noun

A number equal to 1 followed by 36 zeros. Used to describe extremely large quantities.

Example

"The undecillionth part of a second is an incredibly small unit of time."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for undecillions

Antonyms of undecillions

Rhymes with undecillions

Etymologically related