billionaire

bil-lion-aire · noun

imported

Definitions

noun

  1. 1.

    A person whose wealth amounts to at least one billion units of currency (typically dollars, euros, or pounds).

Forms

plural: billionaires

Related words

Antonyms: pauper
See also: billion, millionaire, rich, wealthy
Synonyms: magnate, tycoon

Etymology

From billion + -aire (on the model of millionaire), first attested in the early 20th century.