billionaire

noun

bil·​lion·​aire ˌbi(l)-yə-ˈner 

ˈbi(l)-yə-ˌner

: one whose wealth is estimated at a billion or more dollars, pounds, or other monetary units

Examples of billionaire in a Sentence

Recent Examples on the Web

If successful, the New Glenn could put Blue Origin at the forefront of the private sector space race—sparking even more fierce competition between the billionaires Jeff Bezos and Elon Musk, the world's two richest men, who own companies vying for the lead. —Kevin Lynn, Newsweek, 6 Jan. 2025

The deal was facilitated by Howard Lutnick, the billionaire CEO of financial services firm Cantor Fitzgerald (which provides banking services for, and has reportedly invested in, Tether) and Donald Trump’s nominee for commerce secretary. —Kyle Khan-Mullins, Forbes, 6 Jan. 2025

In the latest iteration of Bill Ackman's activist investing career, the billionaire hedge fund manager is using the power of his 1.5 million followers on X to try to influence one man in particular: Donald Trump. —Felix Salmon, Axios, 6 Jan. 2025

The Rapids are owned by Kroenke Sports & Entertainment — billionaire Stan Kroenke’s global company that also owns the Los Angeles Rams, London’s Arsenal soccer club, and the Denver Nuggets, Colorado Avalanche and Colorado Mammoth. —Sean Keeler, The Denver Post, 5 Jan. 2025

Word History

Etymology

billion + -aire (as in millionaire)

First Known Use

1844, in the meaning defined above

Kids Definition

billionaire

noun

bil·​lion·​aire ˌbil-yə-ˈna(ə)r 

-ˈne(ə)r;

ˈbil-yə-ˌna(ə)r,

-ˌne(ə)r

: one whose wealth is a billion dollars or more