A written or oral explanation of what constitutes the basis of an issue.
The act or process of introducing.
A means, such as a personal letter, of presenting one person to another.
An initial section of a book or article, which introduces the subject material.
The nullification crisis in U.S. history, confrontation between the state of South Carolina and the federal government in 1832–33 over the former's attempt to declare null and void within the state the federal Tariffs of 1828 and 1832.
Surgical removal of genitals (and sometimes nipples) as a form of body modification; a person who has undergone this surgery is a nullo.
The act of nullifying; a rendering void and of no effect, or no legal effect.