Old Faithful is the specific name of a geological phenomenon. The opposite of a proper noun is a common noun, sometimes known as a generic noun. A common noun is the generic name of an item in a class or group and is not capitalized unless appearing at the beginning of a sentence or in a title. The girl crossed the river.
The United States district courts are the general trial courts of the United States federal courts. There are 94 such courts. Both civil and criminal cases are filed in the district court, which is a court of both law and equity. There is a United States bankruptcy court and a number of bankruptcy judges associated with each United States district court.
The U.S. District Courts are the Trial Courts of the Federal court system. The District Courts can hear most Federal cases, including civil and criminal cases. There are 94 U.S. District Courts in the U.S. and U.S. territories. Each district includes a United States bankruptcy court.