Try Our Apps


Gobble up these 8 terms for eating


[bil-yuh-nair, bil-yuh-nair] /ˌbɪl yəˈnɛər, ˈbɪl yəˌnɛər/
a person who has assets worth a billion or more dollars, francs, pounds, or the like.
Origin of billionaire
1855-60, Americanism; billion + -aire, on the model of millionaire Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the Web for billionaire
Contemporary Examples
Historical Examples
  • Overnight Ben Wrail had become a billionaire many times over.

    Empire Clifford Donald Simak
  • Who but a billionaire could say what was fair exchange for a billion?

    The Golden Bowl Henry James
  • The billionaire drew near, adjusted a pair of pince-nez on his hawk-like nose, and peered curiously at the apparatus.

    The Air Trust George Allan England
  • For eighteen years the chemist had lickspittled to the billionaire.

    The Air Trust George Allan England
  • billionaire and world-master though he was, that night he knew his heart lay dead within him.

    The Air Trust George Allan England
British Dictionary definitions for billionaire


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
Cite This Source
Word Origin and History for billionaire

1844, American English, from billion on model of millionaire. The first in the U.S. likely was John D. Rockefeller (1839-1937), some time after World War I.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of the Day

Word Value for billionaire

Scrabble Words With Friends

Nearby words for billionaire