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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.
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Examples from the Web for millionnaire
Historical Examples
  • Mr. John Lambert was a millionnaire, a politician, and a widower.

    Malbone Thomas Wentworth Higginson
  • Even if my father were a millionnaire, I couldn't go on living on him.

    Wilfrid Cumbermede George MacDonald
  • It's not that the money would inconvenience him, for he's a millionnaire.

    Fruitfulness Emile Zola
  • It was easy to see she thought more of the caballero than the millionnaire.

    Roland Cashel Charles James Lever
  • But at twenty-five years of age one is seldom a millionnaire.

    The Sharper Detected and Exposed Jean-Eugne Robert-Houdin
  • I have all my life heard of Mr. Sandford as being a millionnaire.

    Mrs. Dorriman, Volume 1 of 3 Julie Bosville Chetwynd
  • The millionnaire believed, of course, Tim had stolen it, and so did the physician.

    The Wood Fire in No. 3 F. Hopkinson Smith
  • Poor, with no one to assist me but you, I have the tastes and vices of a millionnaire's son.

    File No. 113 Emile Gaboriau
  • Thus do I assert the ownership of the community in millionnaire hoards.

    The Arena Various
  • He spoke with all the haughtiness of a millionnaire to a country practitioner.

    The Doctor's Dilemma Hesba Stretton
British Dictionary definitions for millionnaire


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
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Word Origin and History for millionnaire



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
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