zillionaire
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
An incredibly rich person.
Register: humorous, slang
Where it’s used:
Used
American English
Examples
“Just dropping some friends off at the pool,” the 50-year-old zillionaire informed his 66 million Twitter followers on the evening of Nov. 29, having previously advised that at least half his tweets were “made on a porcelain throne.”
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “zillionaire” mean?
An incredibly rich person.
Is “zillionaire” formal or informal?
zillionaire is generally humorous, slang.