Definition of billionaire in English:


Line breaks: bil¦lion|aire
Pronunciation: /bɪljəˈnɛː


  • A person possessing assets worth at least a billion pounds or dollars.
    More example sentences
    • Melbourne is filling with tycoons, moguls, magnates, billionaires and mere millionaires.
    • And there are multi-millionaires and billionaires earning hundreds of millions of dollars per year.
    • Last year there were 497 billionaires with a net worth of 1.54 trillion dollars.


mid 19th century: from billion, on the pattern of millionaire.

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