The term "Treasury" generally refers to a government department responsible for managing a country's finances. This includes overseeing the collection of taxes, managing public debt, and ensuring the government's financial stability. In the United States, the Department of the Treasury plays a crucial role in formulating economic policy and managing federal funds.
Additionally, "Treasury" can also refer to financial instruments issued by the government, such as Treasury bonds, Treasury bills, and Treasury notes. These securities are used to raise funds for government spending and are considered low-risk investments, as they are backed by the full faith and credit of the government.