What term refers to something that involves money?

The correct term that specifically refers to something that involves money is "pecuniary." This term originates from the Latin word "pecuniarius," which relates to money or property. It is often used in legal and financial contexts to describe matters that are related directly to financial aspects, such as compensation, damages, or transactions involving currency.

While "monetary," "fiscal," and "economic" also pertain to money and finance, they each have unique connotations. "Monetary" generally relates to the currency or monetary policy, focusing on the management of money supply and interest rates. "Fiscal" refers to government revenue and expenditures, often linked to budgeting and taxation. "Economic," on the other hand, encompasses broader principles of production, distribution, and consumption of goods and services, extending beyond just money to include overall financial systems and markets. These distinctions make "pecuniary" the most precise term in referring to matters specifically involving money.