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 American billionaire had tried to buy Chelsea in 2022, but lost out to the consortium led by billionaire Todd Boehly and Clearlake Capital. —Robert Olsen, Forbes.com, 23 June 2025

The billionaire investor is hoping to work with TSMC, the world’s largest contract manufacturer of computer chips, to build a $1 trillion Arizona industrial complex to build robots and AI, per Bloomberg. —Emma Burleigh, Fortune, 23 June 2025

Activists in Venice, Italy, are protesting the upcoming destination wedding of tech billionaire Jeff Bezos and journalist Lauren Sánchez, as reports of the event's extreme extravagance divide the city. —Rachel Treisman, NPR, 23 June 2025

Running for two seasons, the off-kilter series centered on fictional billionaire Ellis Dragon (Rob), a narcissistic biotech entrepreneur whose mental health spirals after the loss of his wife. —Andrea Wurzburger, People.com, 22 June 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