English edit

Etymology edit

mega- +‎ billion

Noun edit

megabillion (plural megabillions)

  1. (informal) A great number of billions.
    • 2015 July 10, John F. Wasik, “Exchange-Traded Funds for the Active-Minded”, in New York Times[1]:
      Within this group, there’s no superstar fund with megabillions in investor dollars.