federalism
//ˈfɛd.ər.əˌlɪz.əm//
Noun
1
A system of government in which power is divided between a central authority and constituent political units, such as states or provinces.
Federalism allows states to have their own laws while still being part of a larger nation.
2
The advocacy or support for a federal system of government.
Federalism has gained support among those who believe in decentralized governance.