English Reference

Word

millionaire

Phoneticsmil·lion·aire, stress on the third syllable

US/ˌmɪɫjəˈnɛɹ/

UK/mˌɪliənˈeə/

Countable noun

Definition

n. a person who has at least one million dollars, pounds, or euros. You use this to describe someone who is very rich.

n. a person whose assets or net worth are valued at one million units of currency or more. Often used to signify a high level of wealth and financial independence.

Examples

“He became a millionaire after selling his tech company.”

“The lottery winner woke up as a millionaire, but she promised to keep her job at the hospital.”

“While being a millionaire was once the ultimate symbol of opulence, inflation has shifted that perception toward the multi-millionaire or billionaire classes in many global financial hubs.”

Examples

simple

“He became a millionaire after selling his tech company.”

contextual

“The lottery winner woke up as a millionaire, but she promised to keep her job at the hospital.”

complex

“While being a millionaire was once the ultimate symbol of opulence, inflation has shifted that perception toward the multi-millionaire or billionaire classes in many global financial hubs.”

Etymology

From French millionnaire. By surface analysis, million + -aire.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

NOUN

millionaire(A2)

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.A2 KeyIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.3.0–4.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 2.0–2.524–43TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.225–549
Frequency
Frequent
Level
A2 · Elementary
Updated

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English Reference