Meanings
Synonyms & antonyms
nounSynonym of zillion: an unspecified, extremely large number.
Similar
Origin
Maybe a blend of quadrillion (“10¹⁵”) + zillion (“hyperbolically large number”).
Full word history & related roots →Cite this entry
APA
quadzillion. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/quadzillion
MLA
“quadzillion.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/quadzillion. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “quadzillion,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/quadzillion.
Source: quadzillion on Wiktionary, CC BY-SA 4.0.