fed·er·a·tion / ˌfedəˈrāshən/ • n. a group of states with a central government but independence in internal affairs. ∎  an organization or group within which smaller divisions have some degree of internal autonomy: [in names] the best tag team in the World Wrestling Federation. ∎  the action of forming states or organizations into a single group with centralized control: a first step in the federation of Europe.DERIVATIVES: fed·er·a·tion·ist n.

Federation

a league or confederacy; a parent organization formed by the linking of several states, countries, companies, or societies, each retaining the control of much of its own affairs.

FEDERATION

A joining together of states or nations in a league or association; the league itself. An unincorporated association of persons for a common purpose.