billionaire

billion +‎ -aire

billionaire (plural billionaires)

1. Somebody whose wealth is greater than one billion (10⁹) dollars, or other currency.
   • 2013 June 22, “Engineers of a different kind”, in The Economist, volume 407, number 8841, page 70:

     Private-equity nabobs bristle at being dubbed mere financiers. […] Much of their pleading is public-relations bluster. Clever financial ploys are what have made billionaires of the industry’s veterans. “Operational improvement” in a portfolio company has often meant little more than promising colossal bonuses to sitting chief executives if they meet ambitious growth targets. That model is still prevalent today.

• billion
• millionaire
• trillionaire