multimillionaire

noun

mul·​ti·​mil·​lion·​aire ˌməl-tē-ˌmi(l)-yə-ˈner 

-ˌtī-, 

-ˈmi(l)-yə-ˌner

variants or less commonly multi-millionaire

plural multimillionaires also multi-millionaires

: a person whose wealth amounts to many millions (as of dollars or pounds)

… she has exhibited a sharp business brain, and is now a multimillionaire.

—Jessamy Calkin

the company's multimillionaire owner/founder

a multimillionaire sports/rock/movie star

Examples of multimillionaire in a Sentence

Recent Examples on the Web

One prominent advocate is Canadian multimillionaire and Shark Tank star Kevin O'Leary, who is an investor in a giant data center in Utah called Stratos. —Geoff Brumfiel, NPR, 10 June 2026

More than 1,000 current and former SpaceX employees have also joined forces to negotiate better pricing and access to sophisticated tax-saving financial products ahead of the IPO, which is poised to turn many of them into multimillionaires, Bloomberg has reported. —Bloomberg, Mercury News, 3 June 2026

The 2017 Hanse Fjord yacht that Hartley captained is owned by Jonathan Rothberg, a biotech multimillionaire who bought a $23.5-million home off the Venetian Causeway in 2021. —Grethel Aguila, Miami Herald, 26 May 2026

Meanwhile, two German multimillionaires were clamoring to mount a private rescue operation. —Jessica Camille Aguirre, New Yorker, 2 May 2026

Word History

First Known Use

1858, in the meaning defined above

Rhymes for multimillionaire

• extraordinaire
• abwehr
• affair
• affaire
• airfare
• altair
• armchair
• aware
• beware
• bugbear
• carfare
• childcare

Kids Definition

multimillionaire

noun

mul·​ti·​mil·​lion·​aire

ˌməl-ti-ˌmil-yə-ˈna(ə)r, 

-ˌtī-, 

-ˈne(ə)r, 

-ˈmil-yə-ˌna(ə)r, 

-ˌne(ə)r

: a person whose wealth is estimated at several millions (as of dollars)