trillionaire

British

/ ˌtrɪljəˈnɛə /

noun

a person whose assets are worth over a trillion of the monetary units of his or her country

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

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trillionaire

He was the world’s first trillionaire for a time this year, after SpaceX’s June 12 initial offering, before the stock slumped.

From Los Angeles Times ● Oct. 22, 2026

But for Musk that’s a relatively trivial amount, even though his fluctuating trillionaire status is currently hovering below the threshold for designation.

From Salon ● Oct. 20, 2026

Musk’s current trillionaire status is also a testament to how much the ceiling for wealth has expanded in the past few years.

From MarketWatch ● Oct. 9, 2026

The rally has made Elon Musk a trillionaire once again, according to Forbes.

From The Wall Street Journal ● Oct. 6, 2026

An equivalent number of American pennies would be enough to make every person on Earth a dollar trillionaire.

From "A Short History of Nearly Everything" by Bill Bryson

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023