Appellate Jurisdiction: The authority of a higher court to review decisions made by lower courts. This is like a second opinion from another doctor when you're unsure about your diagnosis.
Supreme Court: The highest federal court in the United States that has both original and appellate jurisdiction. It's like the final boss level in a video game where they have ultimate power over all other courts.
State Courts: Courts within each state that have their own jurisdiction over matters not covered by federal courts. They handle cases related to state laws, such as traffic violations or family disputes.