trade union [] a group of states or countries that have the same central government or that agree to work together同盟；联盟◆the European Union欧洲联盟⨁to create / dissolve / form / join a union创建／解散／组成／加入联盟 [; ]the act of joining two or more things together; the state of being joined together联合；合并；结合；同盟◆a discussion on economic and monetary union关于经济和货币合作的讨论◆The website is a good example of the union of content and branding.这个网站是内容和品牌结合的典范。◆the company's union with a big media empire这家公司与一家传媒巨头的合并company union credit union customs union enterprise union European Monetary union European union general union labor union non-union trade union trades union