Undecillion

//ˌʌndəˈsɪl.i.ən// num

num ·Rare ·Advanced level

Definitions

Numeral
  1. 1
    10³⁶. US

    "Google has racked up some 2 undecillion rubles ($2.5 decillion) worth of fines in Russia after years of refusing to restore the accounts of pro-Kremlin and state-run media outlets, the RBC news website reported Tuesday, citing an anonymous source familiar with court rulings against the tech company."

  2. 2
    10⁶⁶.

Synonyms

All synonyms
10361066googoljillionquadrillionzillion

Example

More examples

"Google has racked up some 2 undecillion rubles ($2.5 decillion) worth of fines in Russia after years of refusing to restore the accounts of pro-Kremlin and state-run media outlets, the RBC news website reported Tuesday, citing an anonymous source familiar with court rulings against the tech company."

Etymology

From Latin undecim (“eleven”) + -illion. By surface analysis, undec- + -illion.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.