or mil·lion·naire

[ 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

OTHER WORDS FROM millionaire

mil·lion·aire·dom, nounnon·mil·lion·aire, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for millionnaire

British Dictionary definitions for millionnaire



/ (ˌmɪljəˈnɛə) /


a person whose assets are worth at least a million of the standard monetary units of his country

Derived forms of millionaire

millionairess or millionnairess, fem n
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