billionaire

American

[bil-yuh-nair, bil-yuh-nair] / ˌbɪl yəˈnɛər, ˈbɪl yəˌnɛər /

noun

a person who has assets worth a billion or more dollars, euros, etc.

billionaire British

/ ˌbɪljəˈnɛə /

noun

a person whose assets are worth over a billion of the monetary units of his 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

Etymology

Origin of billionaire

First recorded in 1855–60, billion + -aire, on the model of millionaire

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Black, the billionaire co-founder of Apollo Global Management, was one of Epstein’s biggest financial clients.

From The Wall Street Journal

His father, Oracle billionaire Larry Ellison, one of the world's richest men, largely financed the takeover, offering a financial guarantee that finally persuaded the Warner Bros. board.

From Barron's

Running across 63 episodes, the show tells the tale of a billionaire who falls into a vegetative state after a mysterious car accident.

From BBC

What’s Next: Paramount victory is helped by the willingness of billionaire Larry Ellison to backstop the deal and give his son David, Paramount’s CEO, the prize he wanted.

From Barron's

In 2018, Epstein himself visited the property before Shuliak made final bids on the property while pretending to be acting on behalf of Leon Black, a billionaire investor friend of Epstein.

From BBC

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