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 elderly figures like former President Vicente Fox, and Mexican billionaire Ricardo Salinas Pliego published messages in support of the protests. —CNN Money, 16 Nov. 2025

The timing underscored the increasingly fraught relationship between politics, the press and the billionaire owners now shaping major media companies. —Antonio Ferme, Variety, 15 Nov. 2025

In 2017, Thomas reached out to Epstein offering to connect him with Japanese billionaire Masayoshi Son. —Miami Herald, 15 Nov. 2025

Officials with Blue Origin and NASA alike hailed the launch as a major step forward for billionaire Jeff Bezos' space technology company, which aims to compete with fellow billionaire Elon Musk's SpaceX – a dominant force in the commercial rocket launch service industry. —Eric Lagatta, USA Today, 14 Nov. 2025

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