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.
On Wednesday, more than 10,000 union members held a rally on Park Avenue in the east 70s and 80s, a modern-day millionaires' row that’s famous for its luxury, full-service doorman buildings. Elise Taylor, Vanity Fair, 17 Apr. 2026 The tour includes re-creations of the ship’s interiors, including a replica of its famous Grand Staircase, the first-class hallway and millionaires’ suite, the third-class hallway and accommodations, the boiler room and the ship’s exterior promenade deck. Joe Marusak, Charlotte Observer, 16 Apr. 2026 California's one-time billionaire tax proposal may end up on the November ballot, while Maine and Washington have recently passed millionaire taxes. Hayley Cuccinello, CNBC, 16 Apr. 2026 The problem is the more than 40,000 billionaires and millionaires living in the county skew the number to be much higher than is representative of the workforce. Miami Herald, 15 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 24 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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