The definition of a rule is an official regulation, code of regulations or set practice. An example of a rule is that a red light means stop. An example of a rule is an employer demanding their employees arrive at 8am. noun. Rule is defined as to have influence or authority over others.

What are rules called?

Some common synonyms of rule are canon, law, ordinance, precept, regulation, and statute. While all these words mean “a principle governing action or procedure,” rule applies to more restricted or specific situations.

What is a rule in math?

An algebraic rule is a mathematical expression that relates two variables and is written in the form of an equation. There are many constant algebraic rules, such as area = length x width. You can also create your own rule when given a set of variables.