From Longman Dictionary of Contemporary Englishfederationfed‧e‧ra‧tion /ˌfedəˈreɪʃən/ AWL noun 1 [countable]SSO a group of organizations, clubs, or people that have joined together to form a single group → confederation the National Federation of Women’s Institutes2 [countable]PPG a group of states that have joined together to form a single group the Russian Federation3 [uncountable]PPGSSO when groups of people, states etc join together to form a larger group
Examples from the Corpus
federation• Chamber of Commerce and Telcom Ventures, is rapidly assembling a federation of state and local chambers of commerce across the country.• That question is not addressed to an association or a federation.• Fewer than twenty-five states are federations, but this group includes nearly one-half of the land area of the world.• Ironically, it was one of the first broadcasts which extended to the entire federation since its collapse last year.• the U.S. Gymnastics Federation in Indianapolis• the National Federation of Master Builders• He is now chairman of the British Olympic Federation.• Nations and ethnic groups, similarly, would have equal rights, at least within the Soviet federation.• Her case was supported by the Chicago Teachers Federation.• The Treaty defined the demarcation of powers between the federation and the constituent republics as a component element of the new Constitution.• The balance of these federations is kinetic.• The two federations have worked together fairly closely.From Longman Business Dictionaryfederationfed‧e‧ra‧tion /ˌfedəˈreɪʃən/ noun [countable]1ORGANIZATIONSa group of organizations, clubs, or people that have joined together to form a single group to represent their interests, and often used in the names of professional associations and TRADE UNIONsthe American Federation of State, County and Municipal Employeesthe National Federation of Independent Business2a group of states that have joined together to form a single groupWas the Soviet Union to be a federation or a looser arrangement of independent states? —federated adjectiveSome Europeans want a federated nation state. 