Covers a wide range of behaviour of an offensive nature. It is commonly understood to be behaviour intended to disturb, threaten or upset, and it is characteristically repetitive.

The term that describes a duty that is enforced by a court and where non-fulfilment may incur a penalty.

A violation of a statute, regulation or ordinance, which may be criminal or merely not in conformity; that which lacks authority of or support from the law.

Damaging the reputation of a person or a group of people by publishing or saying bad things about them that are not true. More specifically, saying words which amount to defamation is slander and defamation in other forms, such as printed words or images, is libel.