Try Our Apps


The Best Internet Slang


or millionnaire

[mil-yuh-nair] /ˌmɪl yəˈnɛər/
a person whose wealth amounts to a million or more in some unit of currency, as dollars.
any very rich person.
Origin of millionaire
1820-30; < French millionnaire, equivalent to million million + -aire -ary
Related forms
millionairedom, noun
nonmillionaire, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for millionaire
Contemporary Examples
Historical Examples
  • Are you a millionaire,' his face said, 'to pay eighty francs for one day's drive?

    The Roof of France Matilda Betham-Edwards
  • Maybe a person might get to be a millionaire just starting with a frankfurter, you never can tell.

    Pee-wee Harris Percy Keese Fitzhugh
  • Mason was a millionaire and a lumber king, but every one called him Ed.

    One Day's Courtship Robert Barr
  • "And we must first catch our millionaire," said the Colonel.

  • But Lady Louisa never truly returned the millionaire's affection.

    Henry Dunbar M. E. Braddon
British Dictionary definitions for millionaire


a person whose assets are worth at least a million of the standard monetary units of his country
Derived Forms
millionairess, millionnairess, noun:feminine
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 millionaire

1821, from French millionnaire (1762); see million. The first in America is said to have been John Jacob Astor (1763-1848).

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source

Word of the Day

Difficulty index for millionaire

Some English speakers likely know this word

Word Value for millionaire

Scrabble Words With Friends

Nearby words for millionaire