A decision rule whereby the decisions of the numerical majority of a group will be binding on the whole group, its parts, and each member.

(ethics) The principle that one should not treat other people in the manner in which one would not want to be treated by them.

A rule adopted by a particular establishment.

(neurology) Neurons that fire together wire together.

A code of rules governing professional and amateur boxing, published in 1867 and endorsed by the ninth Marquess of Queensberry.

plural of golden rule

plural of exclusionary rule

(US, law) A doctrine which requires that evidence obtained as the result of an illegal act on the part of law enforcement personnel (such as a warrantless search, or continued questioning a witness who has invoked the right of counsel) must therefore be excluded from being admitted as evidence in a trial. This rule does not apply in civil proceedings, although statutes sometime specifically provide for exclusion of such evidence.

(law) The unofficial acceptance of the use of one's spouse's private documents in court during a divorce.

(informal) Australian rules football.