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zillionaire

American  
[zil-yuh-nair] / ˌzɪl yəˈnɛər /

noun

Informal.
  1. a person of incalculably great wealth.


Etymology

Origin of zillionaire

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It’s funny because it’s swaggering, full-of-itself New York, and the Mets are one of baseball’s most profligate franchises, a free-spending, $360-million payroll outfit owned by zillionaire financier Steve Cohen.

From The Wall Street Journal • Apr. 22, 2026

Occasionally she posts a “snapshot” of herself posed alongside it and a neon-orange G-Wagon owned by her zillionaire half sister Kylie Jenner.

From New York Times • Aug. 19, 2021

Meanwhile, on HBO, Gad plays “visionary” zillionaire Herman Judd on “Avenue 5,” the tourists-stranded-in-space comedy from “Veep” auteur Armando Iannucci.

From Los Angeles Times • Jul. 2, 2020

"Yesterday David Koch of the zillionaire Koch brothers died .. of prostate cancer," Maher said during his opening monologue Friday.

From Fox News • Aug. 26, 2019

“Yesterday, David Koch, of the zillionaire Koch brothers, died of prostate cancer. I guess I’m going to have to reevaluate my low opinion of prostate cancer,” Maher said.

From Slate • Aug. 24, 2019

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