Law
noun
The body of binding rules and regulations, customs and standards established in a community by its legislative and judicial authorities.
“entrapment is against the law”
A binding regulation or custom established in a community in this way.
“A new law forbids driving on that road.”
(more generally) A rule, such as:
verb
To work as a lawyer; to practice law.
To prosecute or sue (someone), to litigate.
To rule over (with a certain effect) by law; govern.