millionaire

noun

mil·​lion·​aire ˌmi(l)-yə-ˈner How to pronounce millionaire (audio)
ˈmi(l)-yə-ˌner
Synonyms of millionairenext
: 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.
Save that for the millionaires and billionaires, not guys like myself. — David Hookstead Outkick, FOXNews.com, 7 Aug. 2026 Miami’s new millionaires and billionaires are worthy of the celebrity pages. — Miami Herald Archives, Miami Herald, 5 Aug. 2026 Few public offerings have created so many paper millionaires so quickly. — Anastasia Atamanchuk, Fortune, 5 Aug. 2026 The 78-year-old millionaire businessman has run for mayor three times before — in 2015, 2019, and 2023. — Chris Tye, CBS News, 5 Aug. 2026 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

Phrases Containing millionaire

Rhymes for millionaire

See All Rhymes for millionaire

Browse Nearby Words

million
millionaire
millionairedom
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Cite this Entry

“Millionaire.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/millionaire. Accessed 13 Aug. 2026.

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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

Thesaurus: All synonyms and antonyms for millionaire

Nglish: Translation of millionaire for Spanish Speakers

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