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billionaire

American  
[bil-yuh-nair, bil-yuh-nair] / ˌbɪl yəˈnɛər, ˈbɪl yəˌnɛər /

noun

  1. a person who has assets worth a billion or more dollars, euros, etc.


billionaire British  
/ ˌbɪljəˈnɛə /

noun

  1. a person whose assets are worth over a billion of the monetary units of his country

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of billionaire

First recorded in 1855–60, billion + -aire, on the model of millionaire

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Tesla is facing increased competition from attractively priced Chinese brands and has also suffered from a tarnished image owing to controversies surrounding its billionaire CEO Elon Musk.

From Barron's

As with much of the asinine ponderings coming from the Silicon Valley billionaire class, there’s a pseudo-intellectual rationale to prop up this nonsense.

From Salon

The first movie has the classic whodunnit setting of a big, old mansion, while its sequel Glass Onion was set on a billionaire's private island.

From BBC

Asked about the looming G20 summit, he said: "The billionaires that are coming here, I don't think they will do something better for us."

From Barron's

The company’s founder, tech billionaire Palmer Luckey, has made his convictions clear.

From The Wall Street Journal