This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. The act of federating, especially a joining together of states into a league or federal union.

n. A league or association formed by federating, especially a government or political body established through federal union.

n. Act of joining together into a single political entity.

n. Array of nations or states that are unified under one central authority which is elected by its members.

n. Any society or organisation formed from separate groups or bodies.

adj. Of an architectural style popular around the time of federation.

n. The act of uniting in a league; confederation.

n. A league; a confederacy; a federal or confederated government.

n. The act of uniting in confederation by league and covenant.

n. A league; a confederacy; a federal alliance.

n. A federal government, as that of the United States, Switzerland, or Germany.

n. Synonyms See confederation.

n. a union of political organizations

n. an organization formed by merging several groups or parties

n. the act of constituting a political unity out of a number of separate states or colonies or provinces so that each member retains the management of its internal affairs

"The creation of the federation is being announced at a Tea Party Express rally Thursday morning in St. Paul, Minnesota."

organization    establishment    organisation    constitution    formation   

feast of the federation   

confederation    league    confederacy   

Alsatian    Americanization    Appalachian    Balkanization    Christianization    Confederation    Corp.    Croatian    Dalmatian    Desegregation   

confederation    cartel    coalition    confederacy    republic    organisation    self-government    coöperation    sovereignty    colonization