# milliardaire

> English word · Noun

## Definitions
1. A billionaire; somebody whose wealth is greater than one milliard (10⁹) dollars, or other currency.

## Etymology
From French milliardaire (“milliardaire, billionaire”). Equivalent to milliard + -aire.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/milliardaire