bil·​lion·​aire ˌbi(l)-yə-ˈner How to pronounce billionaire (audio)
: one whose wealth is estimated at a billion or more dollars, pounds, or other monetary units

Examples of billionaire in a Sentence

Recent Examples on the Web In the complaint, the former SpaceX engineers say the troubling posts weren’t just private rantings from its billionaire CEO. Salvador Hernandez, Los Angeles Times, 13 June 2024 And taking someone’s last hundred dollars as a fine is more serious than extracting that fine from a billionaire. Kwame Anthony Appiah, New York Times, 12 June 2024 Neighbors for Results only lists three donors, with the largest check of $500,000 coming from billionaire philanthropist and former New York City Mayor Michael Bloomberg. Grace Hase, The Mercury News, 12 June 2024 The billionaire withdrew his complaint a day before a California judge was set to hear OpenAI’s request for dismissal. Rachel Graf / Bloomberg, TIME, 11 June 2024 See all Example Sentences for billionaire 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'billionaire.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


billion + -aire (as in millionaire)

First Known Use

1844, in the meaning defined above

Time Traveler
The first known use of billionaire was in 1844

Dictionary Entries Near billionaire

Cite this Entry

“Billionaire.” Dictionary, Merriam-Webster, Accessed 20 Jun. 2024.

Kids Definition


bil·​lion·​aire ˌbil-yə-ˈna(ə)r How to pronounce billionaire (audio)
: one whose wealth is a billion dollars or more
Last Updated: - Updated example sentences
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