Breadcrumb Home > Thesaurus > B Synonyms of billionaire Find synonyms for: Noun 1. billionaire, rich person, wealthy person, have usage: a very rich person whose material wealth is valued at more than a billion dollars WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of billionaire (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: juggernaut Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language