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

So Dimon asked Rick Caruso, a billionaire Los Angeles developer of high-end shopping centers, for advice on how to make the space lined with retail and eateries appear more professional, according to The Journal. —Emma Burleigh, Fortune, 18 Oct. 2025

Roughly 40 billionaires have purchased Norwegian Wool coats, Berkowitz estimates. —Megan Sauer, CNBC, 18 Oct. 2025

Frevola moved from America to Bournemouth three years ago to help run the franchise for billionaire owner Bill Foley. —NPR, 18 Oct. 2025

The sight of Musk swinging a chainsaw onstage at a conservative conference captured the pell-mell approach, not to mention the brutality, of the billionaire’s plan to bring the federal government to heel. —Andy Kroll, ProPublica, 18 Oct. 2025

Word History

Etymology

billion + -aire (as in millionaire)

First Known Use

1844, 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