ba·zil·lion·aire | \ bə-ˌzil-yə-ˈner 
\
\ plural bazillionaires
Definition of bazillionaire
chiefly US, informal
: an immeasurably wealthy person : zillionaire More than half a century ago, Rockefeller “discovered” Caneel Bay while sailing around the Caribbean, as bazillionaires are wont to do.— Lori Rackl, Chicago Sun Times, 26 Nov. 2008 Speaking of almighties, fellow bazillionaire producer Jerry Bruckheimer is developing five—count 'em, five—pilots for 2005–06.— Missy Schwartz, Entertainment Weekly, 4 Mar. 2005
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The first known use of bazillionaire was in 1987
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