federation

柯林斯词典

1. N-COUNT A federation is a federal country. 联邦制国家
...the Russian Federation. …俄罗斯联邦。
2. N-COUNT A federation is a group of societies or other organizations which have joined together, usually because they share a common interest. 联合会
...the American Federation of Government Employees. …美国政府雇员联合会。

The trade federation promotes cooperation between local businesses .
The chairmen are proposing that a federation of the two leagues should take place .
The organization was formed in 1982 by the federation of three separate firms .
Opponents argue that European federation shifts power away from nation states .
A federation of charities have launched a new campaign against heart disease .