su·​per·​mil·​lion·​aire ˌsü-pər-ˌmi(l)-yə-ˈner How to pronounce supermillionaire (audio)
plural supermillionaires
: one whose wealth amounts to many millions (as of dollars or pounds)
… the tax rate on the top 400 households in America—those with an average annual income of nearly $350 million—fell by more than a third. In fact, the tax rate for these supermillionaires is now less than the tax rate for average Americans.Charles M. Blow

Word History

First Known Use

1913, in the meaning defined above

Time Traveler
The first known use of supermillionaire was in 1913

Dictionary Entries Near supermillionaire

Cite this Entry

“Supermillionaire.” Dictionary, Merriam-Webster, Accessed 30 May. 2024.

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