Dictionary

billionaire

noun bil·lion·aire \ˌbi(l)-yə-ˈner, ˈbi(l)-yə-ˌ\

: a rich person who has at least a billion dollars, pounds, etc.

Full Definition of BILLIONAIRE

:  one whose wealth is estimated at a billion or more (as of dollars or pounds)

Origin of BILLIONAIRE

billion + -aire (as in millionaire)
First Known Use: 1844

Rhymes with BILLIONAIRE

Browse

Next Word in the Dictionary: billionairessPrevious Word in the Dictionary: billionAll Words Near: billionaire
March 30, 2015
amphibology Hear it
A phrase with more than one interpretation
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears