English dictionary

trillion

/'tr/I/l/j//@/n/

Definitions, examples, synonyms and antonyms from WordNet 3.0.

noun

a very large indefinite number (usually hyperbole)

noun.quantity

Synonyms billion gazillion jillion million zillion

Source: WordNet 3.0
the number that is represented as a one followed by 18 zeros

noun.quantity

Examples
In England they call a quintillion a trillion.

Synonyms one million million million quintillion

Source: WordNet 3.0
the number that is represented as a one followed by 12 zeros

noun.quantity

Examples
In England they call a trillion a billion.

Synonyms 1000000000000 one million million

Source: WordNet 3.0
According to the French notation, which is used upon the Continent generally and in the United States, the number expressed by a unit with twelve ciphers annexed; a million millions; according to the English notation, the number produced by involving a million to the third power, or the number represented by a unit with eighteen ciphers annexed. See the Note under <u>Numeration</u>.

noun

Source: webster1913