Jillionaire

noun, slang

noun, slang ·Uncommon ·College level

Definitions

Noun
  1. 1
    An incredibly rich person; a zillionaire. colloquial, excessive

    "("I can hold my breath for a long time" was this summer's "I ate bison liver." Good for you, you middle-aged macho-measuring jillionaires.)"

Synonyms

All synonyms
bajillionairebazillionairegazillionairesquillionaire

Example

More examples

"("I can hold my breath for a long time" was this summer's "I ate bison liver." Good for you, you middle-aged macho-measuring jillionaires.)"

Etymology

From jillion + -aire.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.