A member of a Federal Party / Alternative form of federal

A system of national government in which power is divided between a central authority and a number of regions with delimited self-governing authority.

(US) A law-enforcement official of the FBI / (historical) A unionist soldier in the American Civil War. / A supporter of federation.

plural of federalism

relating to a system of government in which power is divided between a central authority and constituent regions or states / relating to the national government of a federation

Uniting in a league; forming a confederacy, a federation; federal.

Third-person singular simple present indicative form of federate

present participle of federate

Federative; pertaining to, characteristic of, or constituting a federation.

plural of Federal