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billionaire

[ bil-yuh-nair, bil-yuh-nair ]
/ ˌbɪl yəˈnɛər, ˈbɪl yəˌnɛər /
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noun
a person who has assets worth a billion or more dollars, euros, etc.
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Origin of billionaire

First recorded in 1855–60, Americanism;billion + -aire, on the model of millionaire
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use billionaire in a sentence

British Dictionary definitions for billionaire

billionaire
/ (ˌbɪljəˈnɛə) /

noun
a person whose assets are worth over a billion of the monetary units of his country
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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