trillion

• Nombre représentant un million de millions (1 000 000 000 000) dans l'échelle courte, utilisé notamment en finance et en économie ; par extension, une quantité ou un montant extrêmement grand.

A number representing one million million (1,000,000,000,000) in the short scale, commonly used in finance and economics.

1. One million million (US)B2formalamerican

   The number equal to 1,000,000,000,000, or 10 to the 12th power.

   billion (sens américain)

   • The national debt is over 30 trillion dollars.
   • A trillion grains of sand would fill a large truck.
   • The company is valued at several trillion dollars.

2. One quintillion (UK)C1formalbritish

   The number equal to 1,000,000,000,000,000,000, or 10 to the 18th power.

   trillion (échelle longue)

   • In older British usage, a trillion was a million million million.
   • Historical documents sometimes refer to a trillion as a quintillion.
   • The difference between the US and UK trillion caused confusion in early financial reports.

   Synonymesquintillion

• Nom désignant un très grand nombre, souvent utilisé de manière hyperbolique pour indiquer une quantité indéfinie mais énorme. En anglais britannique traditionnel, il désigne un million de millions de millions (10^18), tandis qu'en anglais américain, il désigne un million de millions (10^12).

A noun referring to a very large number, often used hyperbolically to indicate an indefinite but immense quantity. In British English, it traditionally denotes a million million million (10^18), while in American English it denotes a million million (10^12).

1. A very large indefinite number (hyperbole)B2informal

   An extremely large, often exaggerated, number used to emphasize quantity.

   un très grand nombre indéfini (hyperbole)

   • I've told you a trillion times to clean your room!
   • There are a trillion stars in the sky, it seems.
   • He has a trillion ideas, but never acts on them.

   Synonymesgazillionjillionzillion

2. One followed by 18 zeros (long scale)C1formalbritish

   The number represented as 1,000,000,000,000,000,000; a million million million.

   trillion (échelle longue)

   • In the long scale, a trillion equals 10^18.
   • The national debt was measured in trillions under the old system.
   • Astronomers discuss distances in trillions of kilometers.

   Synonymesquintillion

3. One followed by 12 zeros (short scale)B2formalamerican

   The number represented as 1,000,000,000,000; a million million.

   billion (échelle courte)

   • The company's valuation reached over a trillion dollars.
   • The government spent trillions on economic stimulus.
   • A trillion grains of sand would fill a large truck.