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

In fact, the billionaire uses the generative technology to generate meeting summaries, project updates, monitor productivity, and more. —Preston Fore, Fortune, 5 Oct. 2025

The billionaire however, said that ultimately industrial bubbles could be positive. —Arjun Kharpal, CNBC, 3 Oct. 2025

In response, the billionaire discussed his rocket company, Blue Origin, before talking about the construction of data centers in Earth’s orbit. —Senior Reporter, PC Magazine, 3 Oct. 2025

Meanwhile Jack Ciattarelli continues to rake in cash from billionaire landlords while his running mate wants to raise taxes on working New Jerseyans while sparing the ultra-wealthy. —Deputy News Editor, MSNBC Newsweek, 3 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