| Term | Definition |
| Delegated powers | Powers given to the federal government |
| Reserved Powers | Powers retained by the states |
| Shared Powers | Powers held by both state and federal governments |
| Unconstitutional | Contrary to the U.S. Constitution |
| Federalism | System of government that divides power between national and state governments |
| Veto | To refuse to accept of approve |
| Impeach | to bring charges against a high government official |
| Ex post facto laws | to set forth a penalty for committing an act that was not illegal at the time it took place |
| Bill of Attainder | laws that punish a person without a court trial |
| Writ of Habeas Corpus | A court order that law enforcement officers show cause for the arrest or detention of a person; designed to prevent unlawful arrest and imprisonment |