A court that hears appeals that come from lower courts: Appellate courts typically do not try criminal cases.

An authority who rehears cases from lower courts: An appellate jurisdiction has the duty to alter, uphold, or overturn lower court decisions.

A comprehensive rehearing of a case in a court other than the one in which it was previously tried: An appellate review involves the examination of the record of a cases from a legal standpoint, and not from factual information.