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Adjective: trillion  tril-yun [N. Amer], tri-lee-un [Brit]
  1. One million million
     
  2. [Brit, archaic] One quintillion
Noun: trillion  tril-yun [N. Amer], tri-lee-un [Brit]
  1. A very large indefinite number (usually hyperbole)
    "there were trillions of flies";
    - million, billion, zillion, jillion, gazillion, squillion, bazillion [N. Amer]
     
  2. The number that is represented as a one followed by 12 zeros
    - one million million, 1000000000000
     
  3. [Brit, archaic] The number that is represented as a one followed by 18 zeros
    - one million million million [Brit]

Derived forms: trillions

See also: cardinal

Type of: large indefinite amount, large indefinite quantity, large integer

Encyclopedia: Trillion