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.
A royalty.
A method with the same name and signature as a method in a superclass, which runs instead of that method, when an object of the subclass is involved.
A mechanism, device or procedure used to counteract an automatic control.
A device for prioritizing audio signals, such that certain signals receive priority over others.
To give commands of a higher priority to an automated system; to take manual control of an automated system
To define a new behaviour of a method by creating the same method of the superclass with the same name and signature.
To ride a horse too hard.
To ride over the top of something, usually forcibly.
To ride across or beyond something.
To counteract the normal operation of something; to countermand with orders of higher priority.