Refers to a person with a million or more in currency.
El millonario decidió donar parte de su fortuna a organizaciones benéficas que ayudan a los necesitados.
The millionaire decided to donate part of his fortune to charitable organizations that help those in need.
En una sociedad plutocrática, el poder se concentra en manos de unos pocos millonarios.
In a plutocratic society, power is concentrated in the hands of a few millionaires.