Constitution: A set of fundamental principles or established precedents according to which a state or other organization is governed. It outlines the structure, powers, and limitations of government.
Separation of Powers: A fundamental principle in democracy that divides governmental authority among different branches (usually executive, legislative, and judicial) to prevent concentration of power.
Bill of Rights: A list of fundamental rights guaranteed to citizens by a constitution. It typically includes freedoms such as speech, religion, and assembly while also protecting individuals from unjust treatment by the government.