FISC stands for Foreign Intelligence Surveillance Court, which is a specialized court in the United States that reviews requests for surveillance warrants against foreign spies and terrorists. Many synonyms can be used to describe FISC, including intelligence court, spy court, surveillance court, foreign surveillance court, and security court. These terms are often used interchangeably with FISC to refer to the court's functions and operations. While different words may have slightly different connotations, they all refer to a court that plays a crucial role in protecting national security by allowing intelligence agencies to collect information on foreign threats while adhering to strict legal guidelines and oversight.