billionaire

noun

bil·​lion·​aire ˌbi(l)-yə-ˈner How to pronounce billionaire (audio)
ˈbi(l)-yə-ˌner
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
As Elon Musk and his Department of Government Efficiency dominate headlines, Democrats are becoming increasingly concerned the billionaire entrepreneur is providing political cover for President Donald Trump. Naomi Lim, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 7 Mar. 2025 The billionaire Trump ally instead says that the decisions to fire thousands of staff from agencies, including USAID, CDC staff and veterans, were made the heads of those agencies. Hannah Parry, Newsweek, 7 Mar. 2025 The cuts are part of sweeping staffing reductions at agencies across the federal government made by Trump and billionaire Elon Musk. arkansasonline.com, 7 Mar. 2025 More than one-third of the total came from billionaire Elon Musk’s efforts, with Trump’s blessing, to slash the federal headcount. Yeo Boon Ping, CNBC, 7 Mar. 2025 See All Example Sentences for billionaire

Word History

Etymology

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

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Cite this Entry

“Billionaire.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/billionaire. Accessed 13 Mar. 2025.

Kids Definition

billionaire

noun
bil·​lion·​aire ˌbil-yə-ˈna(ə)r How to pronounce billionaire (audio)
-ˈne(ə)r;
ˈbil-yə-ˌna(ə)r,
-ˌne(ə)r
: one whose wealth is a billion dollars or more

More from Merriam-Webster on billionaire

Last Updated: - Updated example sentences
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