Federalism: A system of government where power is divided between a central authority (like the federal government) and individual states or regions. Each level of government has its own set of powers.
Unitary Government: A system of government where power is concentrated in a single central authority, with little to no autonomy given to regional or local governments.
Decentralization: The transfer of power from a central authority to lower levels of government or other institutions. This allows for greater local control and decision-making.