In the legal system, "appeals courts" are entities that review decisions made by lower courts. There are other words that can be used interchangeably, depending on the jurisdiction or country. For example, in the United States, the appeals courts are sometimes referred to as "circuit courts" or "appellate courts." In the UK, they may be called "higher courts" or "appeal courts." Other terms include "court of appeals," "appellate division," or "court of cassation." Regardless of the term, the role of appeals courts is to ensure that legal decisions are fair, just, and consistent with the law, by reviewing cases and either upholding, reversing, or remanding lower court rulings.