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

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Later, Forest portrayed the wealthy older millionaire who has a fatal heart attack after an intense sadomasochistic encounter with Madonna’s Rebecca Carlson in Body of Evidence (1993) and was a pilot in the Tom Hanks-starring Cast Away (2000). — Mike Barnes, HollywoodReporter, 16 Oct. 2026 Senator Bernie Sanders and Representative Ro Khanna have introduced a federal version; a dozen states have advanced millionaire or billionaire taxes this year; and Maine, Washington, Hawaii, and Rhode Island have all enacted one. — Christopher Marquis, Time, 16 Oct. 2026 Doody, a former radio host, also supports school choice and opposes a millionaire tax, two notches in his favor. — The Editorial Board, Chicago Tribune, 14 Oct. 2026 Cristobal Young, a sociology professor at Cornell University, said previous California tax increases on millionaires didn't lead to a mass exodus of wealthy people. — ABC News, 9 Oct. 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

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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 20 Oct. 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)

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