billionaire

noun

bil·​lion·​aire ˌbi(l)-yə-ˈner How to pronounce billionaire (audio)
ˈbi(l)-yə-ˌner
Synonyms of billionairenext
: 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
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No matter where, no matter when, Rick Jackson — the GOP billionaire candidate for Georgia governor — starts to choke up. Patricia Murphy, AJC.com, 23 July 2026 But many can’t afford to buy a new car as billionaires in Bugattis drive by. Diane Brady, Fortune, 23 July 2026 Hope Lodge | Sutherland, Scotland Danish billionaire Anders Holch Povlsen opened this lodge as part of his intensive, extensive investments into his adoptive home of Scotland, which he’s dubbed Wildland. Laura Dannen Redman, Robb Report, 23 July 2026 The show gradually increased its star power over its run, adding Jon Hamm as billionaire Paul Marks in Season 3 and building an ensemble cast that includes Billy Crudup, Mark Duplass, Nestor Carbonell, Karen Pittman, and Nicole Beharie. Christian Zilko, IndieWire, 23 July 2026 See All Example Sentences for billionaire

Word History

Etymology

billion + -aire (as in millionaire)

First Known Use

1841, in the meaning defined above

Time Traveler
The first known use of billionaire was in 1841

Browse Nearby Words

Cite this Entry

“Billionaire.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/billionaire. Accessed 27 Jul. 2026.

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

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