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

And as the influx of billionaires and multi-millionaires to the region continues, the market for luxury homes priced at $30 million and up has exploded, according to a new report from the real estate research firm Analytics Miami. — Catherine Odom, Miami Herald, 30 July 2026

Informing your supporters that their problems are the result of a shadowy cabal of billionaire conspirators tends to unleash passions that can be difficult to control. — Jonathan Chait, The Atlantic, 30 July 2026

Eager as the women are to nab a serial killer, going after the network’s Epstein-like billionaire ringleader proves even more tempting. — Inkoo Kang, New Yorker, 30 July 2026

Auto-parts billionaire Shahid Khan bought Fulham in 2013, while billionaire Todd Boehly and private-equity firm Clearlake Capital purchased Chelsea in 2022. — Marco Quiroz-Gutierrez, Fortune, 30 July 2026

Word History

Etymology

billion + -aire (as in millionaire)

First Known Use

1841, in the meaning defined above

Rhymes for billionaire

• aftercare
• anywhere
• chinaware
• debonair
• dinnerware
• disrepair
• doctrinaire
• earthenware
• everywhere
• frigidaire
• kitchenware
• legionnaire

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