Rule

a principle or condition that customarily governs behavior

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

something regarded as a normative example

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

dominance or power through legal authority

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

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

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

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

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

prescribed guide for conduct or action

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

keep in check

decide with authority

mark or draw with a ruler

exercise authority over; as of nations

decide on and make a declaration about

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

have an affinity with; of signs of the zodiac