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
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According to the latest Federal Reserve data, the United States has more millionaires than ever. Matthew Lynn, Washington Post, 27 Apr. 2026 Following the news of Ernie’s death, a photo of the late millionaire’s hunting collection in his home was released. Kimberlee Speakman, PEOPLE, 25 Apr. 2026 Her people urgently insisted that Omar is not a millionaire. Joe Soucheray, Twin Cities, 25 Apr. 2026 But that was rejected by voters, and even though 61% of voters signaled support for the millionaire tax in 2024 in a nonbinding referendum, some lawmakers were still skeptical a binding amendment would get voters' blessing. Ben Szalinski, CBS News, 24 Apr. 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

Browse Nearby Words

Cite this Entry

“Millionaire.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/millionaire. Accessed 30 Apr. 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)

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