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

That and billionaires’ bonuses concludes my list of winners. —Pat Beall, Sun Sentinel, 4 July 2025

David Ellison, son of tech billionaire Larry Ellison, is eager to run the company that boasts the Melrose Avenue film studio, the Paramount+ streaming service, CBS and cable channels including Comedy Central, Nickelodeon and BET. —Meg James Los Angeles Times, arkansasonline.com, 3 July 2025

Or look at Jeff Bezos, celebrity groom and billionaire owner of the Washington Post, currying favor with Trump after — just a coincidence, no doubt — killing an editorial in 2024 endorsing Kamala Harris for president. —Bill Goodykoontz, AZCentral.com, 3 July 2025

Her father, the editor of a liberal intellectual magazine, seems constantly distracted by his efforts to court a billionaire to purchase it, while her stepmom is more focused on her son’s ADHD and the family’s rapidly dwindling bank account. —Mark Athitakis, Los Angeles Times, 3 July 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