Rule

a principle or condition that customarily governs behavior

something regarded as a normative example

prescribed guide for conduct or action

(linguistics) a rule describing (or prescribing) a linguistic practice

a basic generalization that is accepted as true and that can be used as a basis for reasoning or conduct

the duration of a monarch's or government's power

dominance or power through legal authority

directions that define the way a game or sport is to be conducted

any one of a systematic body of regulations defining the way of life of members of a religious order

a rule or law concerning a natural phenomenon or the function of a complex system

(mathematics) a standard procedure for solving a class of mathematical problems

measuring stick consisting of a strip of wood or metal or plastic with a straight edge that is used for drawing straight lines and measuring lengths

exercise authority over

decide with authority

be larger in number, quantity, power, status or importance

decide on and make a declaration about

have an affinity with

mark or draw with a ruler

keep in check