millionaire

noun

mil·​lion·​aire ˌmi(l)-yə-ˈner How to pronounce millionaire (audio)
ˈmi(l)-yə-ˌner
: a person whose wealth is estimated at a million or more (as of dollars or pounds)

Examples of millionaire 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.
And while its population of 2,800 millionaires is still dwarfed by many other countries, Montenegro is seeing an unprecedented surge within its borders. Jason Ma, Fortune, 26 Oct. 2025 But no, a single depraved millionaire really did spend years loaning out trafficked teenagers to his rich and famous friends. Helen Lewis, The Atlantic, 25 Oct. 2025 From what George had heard, maybe even a millionaire—a sterling millionaire. David Wingrave, Harpers Magazine, 24 Oct. 2025 Congress, comprising many members in the millionaires club, wouldn’t be hurting too much, but the $0 checks would add up. Boston Herald Editorial Staff, Boston Herald, 23 Oct. 2025 See All Example Sentences for millionaire

Word History

Etymology

French millionnaire, from million, from Middle French milion

First Known Use

1786, in the meaning defined above

Time Traveler
The first known use of millionaire was in 1786

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Cite this Entry

“Millionaire.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/millionaire. Accessed 29 Oct. 2025.

Kids Definition

millionaire

noun
mil·​lion·​aire ˌmil-yə-ˈna(ə)r How to pronounce millionaire (audio)
-ˈne(ə)r,
ˈmil-yə-ˌna(ə)r,
-ˌne(ə)r
: one whose wealth is estimated at a million or more (as of dollars)

More from Merriam-Webster on millionaire

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