You have to consult Dictionary.com for the definition of “trillionaire.” Webster’s doesn’t yet recognize trillionaire as a word. But it will. If you’re under 60, America’s ...

Before Paul Graham defined "founder mode," Bill Gates embodied a similar approach when cofounding Microsoft in the 1970s.

There is no love lost between billionaire tech bros Elon Musk and Bill Gates, and here's the history and origin story behind ...

Here's a list of the top ten richest people in the world, nine of which are American billionaires. See Elon Musk's net worth.