Definitions:
the system of rules which a particular country or community recognizes as regulating the actions of its members and which it may enforce by the imposition of penalties

a rule defining correct procedure or behaviour in a sport

a statement of fact, deduced from observation, to the effect that a particular natural or scientific phenomenon always occurs if certain conditions are present

the body of divine commandments as expressed in the bible or other religious texts.

a hill, typically one that is round or conical in shape