zillionaire

[ zil-yuh-nair ]
nounInformal.

  1. a person of incalculably great wealth.

Origin of zillionaire

1
First recorded in 1945–50; zillion + (million)aire

Words Nearby zillionaire

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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