Andrew Mellon was a notable businessman and politician who served as the United States Secretary of the Treasury under three consecutive presidents. Synonyms for Mellon could include financier, philanthropist, millionaire, politician, art collector, and banker. Mellon was known for his business acumen and amassed a vast fortune during his career. His philanthropic efforts also made him a respected figure in the community, with many charities benefiting from his generosity. As an art collector, Mellon played a significant role in creating the National Gallery of Art in Washington, D.C., and his contributions to culture and society are still recognized today.