billionaire

American  

[bil-yuh-nair, bil-yuh-nair] / ˌbɪl yəˈnɛər, ˈbɪl yəˌnɛər /

noun

1. a person who has assets worth a billion or more dollars, euros, etc.

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billionaire British  

/ ˌbɪljəˈnɛə /

noun

1. a person whose assets are worth over a billion of the monetary units of his country

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Etymology

Origin of billionaire

First recorded in 1855–60, billion + -aire, on the model of millionaire

Example Sentences

The businesswoman built her wealth in the homemaking and lifestyle industry, becoming the USA's first self-made female billionaire.

From BBC

Stewart is a billionaire businesswoman who built her success in the homemaking and lifestyle industries.

From Barron's

Paramount says billionaire Larry Ellison is agreeing to personally guarantee $40.4 billion of equity financing for the deal and publish records related to the family trust that backstops the deal.

From The Wall Street Journal

Warner’s board advised shareholders last week to vote against Paramount’s tender offer because billionaire Larry Ellison, who would fund the deal, hadn’t personally guaranteed his $40 billion in financing.

From The Wall Street Journal

But let’s get real for a moment: You’re almost certainly not a billionaire.

From MarketWatch