Definitions:

1. a very large indefinite number, usually hyperbole noun
   • Bill Gates has about a trillion dollars.
2. the number that is represented as a one followed by 12 zeros noun
   • in England they call a trillion a billion
3. the number that is represented as a one followed by 18 zeros noun
   • in England they call a quintillion a trillion

Synonyms:

• billion
• one million million million
• quintillion
• zillion

NearBy Words:

• trillionth