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

How will the billionaire singer and millionaire football star divide their assets? — Grey Battle, Washington Post, 2 July 2026

The accounts already have gotten a boost from billionaires beyond the $1,000 from the government. — Moriah Balingit, Los Angeles Times, 2 July 2026

In 2023, Swift reached billionaire status following the success of the Eras tour. — Maya Georgi, Rolling Stone, 2 July 2026

That’s enough to make McKinnon a billionaire, according to calculations by Forbes. — Kirk Ogunrinde, Forbes.com, 2 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