Quadzillion

//kwɒdˈzɪl.jən// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Synonym of zillion: an unspecified, extremely large number. excessive, uncountable

Synonyms

All synonyms
zillion

Etymology

Maybe a blend of quadrillion (“10¹⁵”) + zillion (“hyperbolically large number”).

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