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.
While Massachusetts residents did leave the state in 2021, the year the bill passed, most were upper-middle-class taxpayers, not millionaires. Kelly Phillips Erb, Forbes.com, 27 June 2025 The true crime story about a millionaire dentist, his wife, and his mistress, and one of their suspicious deaths on a Zambian safari — a mystery documented in the pages of Rolling Stone — will be the focus of a Hulu docuseries out next month. Daniel Kreps, Rolling Stone, 27 June 2025 The Norwegian documentarian then travels to the U.S. to meet the former homeless man turned digital millionaire face to face. Melanie Goodfellow, Deadline, 26 June 2025 McCaskill highlighted revenue from the recent millionaire’s tax, or Fair Share Amendment, which reportedly brought in over $2 billion in its first year, as a funding source. Grace Zokovitch, Boston Herald, 25 June 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 8 Jul. 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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