1. power to enforce obedience and make decisions over a group - authority
2. cannot be felt by touching, immaterial - intangible
3. goods brought into a country or state for the purpose of trade - import
4. control, adjust or govern according to a system - regulate
5. systems of taxes placed on imports or exports - tariff

1. Political system in which the government allows citizens to own private business for profit: Free Enterprise
2. One who studies individual relationships within society and relationships to society: Social Scientist
3. A political system of collective ownership of property, where the population is of one class: Socialism
4. A system where political power is to be shared by the whole population, and property is to be shared equally: Communism
5. A basic rule or standard: Principle.