policy

(noun) a plan of action adopted by an individual or social group. Examples: "It was a policy of retribution." "A politician keeps changing his policies."

(noun) a line of argument rationalizing the course of action of a government. Example: "They debated the policy or impolicy of the proposed legislation."

(noun) written contract or certificate of insurance. Synonyms: insurance policy, insurance. Example: "You should have read the small print on your policy."