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

While the list includes 156 billionaires — a drop from 165 last year — the King is not among them. —Meredith Kile, People.com, 16 May 2025

Steve Carrell, Jason Schwartzman, Ramy Youssef, and Cory Michael Smith star as the slimy billionaires. —Ben Rosenstock, Time, 16 May 2025

The 55-year-old ex-mogul's business interests and musical success led to him becoming a billionaire in 2022, per Larisha Paul of Rolling Stone, although much of that fortune now is presumably being spent on legal fees. —Alex Kirschenbaum, MSNBC Newsweek, 16 May 2025

Republicans in Congress want $5 trillion for billionaire largesse. —Letters To The Editor, The Orlando Sentinel, 16 May 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