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

The regulatory filing, released last week, states that Warsh would stop working as an adviser for the private investment firm of billionaire Stanley Druckenmiller and divest some of his holdings if he is confirmed as Fed chair. —Mary Cunningham, CBS News, 21 Apr. 2026

Ulukaya, whose net worth is about $11 billion according to the Bloomberg Billionaires Index, doesn’t have the trappings of today’s typical billionaire. —Austin Carr, Bloomberg, 21 Apr. 2026

But Amazon’s billionaire founder, Jeff Bezos, gave Eva Longoria $50 million to actually do it. —Orianna Rosa Royle, Fortune, 21 Apr. 2026

Another Republican and a Democrat — Riverside County Sheriff Chad Bianco and billionaire climate activist Tom Steyer respectively — were tied for third at 14% each. —Los Angeles Times, 20 Apr. 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