noun Informal.
a person of incalculably great wealth.

1945–50; zillion + (million)aire

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To zillionaire
Explore Dictionary.com
Previous Definition: zillion
Next Definition: zilog
Words Near: zillionaire
More from Thesaurus.com
Synonyms and Antonyms for zillionaire
More from Reference.com
Search for articles containing zillionaire
More from Dictionary.com Translator
Dictionary.com Word FAQs

Dictionary.com presents 366 FAQs, incorporating some of the frequently asked questions from the past with newer queries.

Example sentences
Yet zillionaire bankers claimed that they had no idea housing prices could possible drop even a few percent.
The film does not enhance its credibility by making the zillionaire rock star's life one of unadulterated gloom.
Now, under his auspices, a zillionaire comic would perform a kind of bee bungee jump.
But, its average income could be high, thanks to that one multi-zillionaire.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature