| A | B |
| unconstitutional | Term classifying statutes as invalid because they conflict with the federal Consititution or state constitution. |
| stare decisis | Principle under which new cases are treated in ways consistent with prior case law. |
| statute | A law of Congress or state legislature. |
| interstate commerce | Commerce between two or more states. |
| ordiance | A law of local governmental body. |
| common law | Case decisions and opinions reflecting customs and practices of the people. |
| business law | Rules of law that apply to business situations and transactions. |
| Uniform Commercial Code (UCC) | Name of a code of laws that simplifies, clarifies, and modernizes the laws affecting commercial transactions. |
| injunction | A command form a court to not do something. |
| case law | Laws made by court opinions. |