We found one dictionary that defines the word billionairedom:

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1. billionairedom: Wiktionary

Definitions from Wiktionary (billionairedom) ▸ noun:  The state of being a billionaire. ▸ Words similar to billionairedom ▸ Usage examples for billionairedom ▸ Idioms related to billionairedom ▸ Wikipedia articles (New!) ▸ Popular adjectives describing billionairedom ▸ Words that often appear near billionairedom ▸ Rhymes of billionairedom ▸ Invented words related to billionairedom