| A | B |
| parol evidence rule | Rule under which a written contract cannot be changed by prior oral or written agreements |
| express contract | Contract in which the agreement of the parties is spoken or written |
| formal contract | Written contract that must be in a special form to be enforceable |
| executed contract | Contract that has been fully performed |
| simple contract | Any contract that is not formal |
| implied contract | Contract in which intent of the parties is shown by conduct or circumstances |
| quasi contract | Obligation that is enforced as if it were a contract in order to prevent unjust enrichment |
| statute of fraud | Law stating that certain agreements are not enforceable unless they are in writing and are signed by the party against whom the contract is to be enforced |
| executory contract | Contract that has not been fully performed |
| contract of adheison | contract in which the more powerful party dictates all the important terms |
| notary republic | a public officer who is formally certifies that teh signatures on deeds and other document are authentic |