CAPITOL HILL

a hill in Washington, DC. The United States Capitol building, occupied by the national legislative body, the United States Congress, sits on this hill. —HEV Approved Glossary

a hill in Washington, DC. The United States Capitol building, occupied by the national legislative body, the United States Congress, sits on this hill.the United States Congress. This expression comes from the fact that the US Capitol building, which is occupied by Congress, is located on a hill in Washington, DC.