millionaire

noun

mil·​lion·​aire ˌmi(l)-yə-ˈner 

ˈmi(l)-yə-ˌner

: a person whose wealth is estimated at a million or more (as of dollars or pounds)

Examples of millionaire in a Sentence

Recent Examples on the Web

Despite that, the blockbuster IPO has made Musk the world's first trillionaire, minted thousands of new millionaires and saw some shareholders' stakes surpass the billion-dollar mark. —Kai Nicol-Schwarz, CNBC, 22 June 2026

Both Anthropic and rival OpenAI, the maker of ChatGPT, are set to go public in the coming year, minting thousands of new multi-millionaires. —Ben Paviour, Sacbee.com, 17 June 2026

If nothing else, Athlete Creditor—unlike the House settlement—has yielded one very gratified new millionaire, though Roman Rashada insists the appeal of this process goes beyond his payout. —Daniel Libit, Sportico.com, 17 June 2026

One Pennsylvania Lottery player has become the state's newest millionaire after winning the $1 million top prize off a scratch-off ticket. —Garrett Behanna, CBS News, 16 June 2026

Word History

Etymology

French millionnaire, from million, from Middle French milion

First Known Use

1786, in the meaning defined above

Phrases Containing millionaire

• multi-millionaire

Rhymes for millionaire

• aftercare
• anywhere
• billionaire
• chinaware
• debonair
• dinnerware
• disrepair
• doctrinaire
• earthenware
• everywhere
• frigidaire
• kitchenware

Kids Definition

millionaire

noun

mil·​lion·​aire ˌmil-yə-ˈna(ə)r 

-ˈne(ə)r, 

ˈmil-yə-ˌna(ə)r, 

-ˌne(ə)r

: one whose wealth is estimated at a million or more (as of dollars)