billionaire

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noun bil·lion·aire \ˌbi(l)-yə-ˈner, ˈbi(l)-yə-ˌ\

Definition of billionaire

  1. :  one whose wealth is estimated at a billion or more (as of dollars or pounds)

Origin and Etymology of billionaire

billion + -aire (as in millionaire)


First Known Use: 1844


BILLIONAIRE Defined for English Language Learners

billionaire

play
noun bil·lion·aire \ˌbi(l)-yə-ˈner, ˈbi(l)-yə-ˌ\

Definition of billionaire for English Language Learners

  • : a rich person who has at least a billion dollars, pounds, etc.



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