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.
What is known is that no new Black millionaires emerged, and fewer Black construction firms existed after the project than before it. Ed Gaskin, Boston Herald, 12 Jan. 2026 As salaries increased, the state has rolled up operating surpluses for the past seven years as capital gains on Wall Street has generated billions of dollars that are largely paid by millionaires and billionaires in Fairfield County. Christopher Keating, Hartford Courant, 11 Jan. 2026 All of them are begging the millionaires and billionaires who have helped build a facility or throw some nice cars at recruits of the past to sustain competitive payrolls. Joe Rexrode, New York Times, 11 Jan. 2026 Even with modest revenue growth late last year — Illinois collected more than $230 million more in December than the same month the year before — Welch has renewed calls for a surcharge on millionaires, arguing the state still has a structural revenue problem. Jeremy Gorner, Chicago Tribune, 11 Jan. 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

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Cite this Entry

“Millionaire.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/millionaire. Accessed 19 Jan. 2026.

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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