# billionaire

> English word · Noun · IPA /ˌbɪl.i.əˈnɛə(ɹ)/ · frequency rank #10,168

## Definitions
1. Somebody whose wealth is at least one billion (10⁹) currency units.

## Etymology
From billion + -aire.

## Common misspellings (13)
`bbillionaire`, `bililonaire`, `bilionaire`, `billinoaire`, `billioanire`, `billionaier`, `billionairre`, `billionarie`, `billioniare`, `billionnaire`, `billoinaire`, `blilionaire`, `ibllionaire`

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