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Noun: zillion  zil-yun [N. Amer], zi-lee-un [Brit]
Usage: informal
  1. A very large indefinite number (usually hyperbole)
    "there were zillions of flies";
    - million [informal], billion [informal], trillion [informal], jillion [N. Amer, informal], gazillion [informal], bazillion [N. Amer, informal], bajillion [informal], squillion [informal]
Adjective: zillion  zil-yun [N. Amer], zi-lee-un [Brit]
Usage: informal
  1. Very large indeterminate number
    "a zillion people were there";
    - gazillion [informal], bajillion [informal], squillion [informal], bazillion [N. Amer, informal]

Derived forms: zillions

See also: cardinal

Type of: large indefinite amount, large indefinite quantity

Encyclopedia: Zillion