What words would we use to describe the main ideas or principles of the Constitution?

The main ideas of the Constitution can be described using Words such as "federalism," which emphasizes the division of power between national and state governments; "separation of powers," which establishes distinct branches of government to prevent tyranny; "checks and balances," ensuring that no branch becomes too powerful; and "popular sovereignty," reflecting the principle that government derives its authority from the consent of the governed. Additionally, "limited government" underscores that the government's powers are restricted by law to protect individual rights.