This document defines several key political and governmental terms: election is the selection of people for office by vote; government refers to the system or form of rule that governs a state or community; head of state is the highest position in a national government; citizen describes a member of a state or nation; flag is a symbol used to represent a nation, state or organization; currency is something used as a medium of exchange like money; law outlines principles and regulations for a community; and borders mark the line separating one country or state from another.