Trillionaire vs. Billionaire

Trillionairenoun

Somebody whose wealth is greater than one trillion (1012) dollars, or other currency.

Billionairenoun

Somebody whose wealth is greater than one billion (109) dollars, or other currency.

Billionairenoun

a very rich person whose material wealth is valued at more than a billion dollars

Billionaire

A billionaire is a person with a net worth of at least one billion (1,000,000,000, i.e., a thousand million) units of a given currency, usually of a major currency such as the United States dollar, the euro, or the British pound. The American business magazine Forbes produces a global list of known U.S. dollar billionaires every year and updates an Internet version of this list in real time.