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Line breaks: mil¦lion|aire
Pronunciation: /mɪljəˈnɛː

Definition of millionaire in English:


A person whose assets are worth one million pounds or dollars or more: he is now a millionaire several times over [as modifier]: a millionaire businessman
More example sentences
  • More recently, it's been a case of millionaires striking against billionaires.
  • Contrast this to the United states where there are a million-plus millionaires.
  • As boisterous entrepreneurs, now millionaires many times over, both enjoy the limelight a great deal.


early 19th century: from French millionnaire, from million (see million).

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a narrow valley, especially in Scotland or Ireland