(1)团结(和睦)，一致(state of being united) [U] (fml)：There is strength in～. 团结就是力量。The dog and cat live together in perfect/unspoilt～. 狗和猫非常和睦地生活在一起。

(2)合并，联(结)合(体)(act of uniting or process of being united) [U，a/the～] [N(of，with)(between)]：The book is a perfect～of humour and seriousness. 本书是幽默诙谐与严肃认真实现最佳结合的一部作品。the～of Scotland with England/hydrogen and oxygen/three towns into one/two states 英格兰与苏格兰的合并/氢氧结合/三镇合成一座城市/两个州合并;the～between the two countries 两国的联合;support the～of one party with another 支持一党与另一党的联合;〖同〗combination，mixture，unity，oneness;〖反〗separation，division;

(3)联邦(盟)，合众国(formation of a single political unit from 2 or more separate and independent units)[C]：form a perfect～against 组成一个反对……的完善的联盟;The U～often means the United States. 联邦(合众国)经常指美国。A federation is a～of states. 联邦即各州联盟。speech on the state of the U～美国国情演说;the Soviet U～/the U～of Soviet Socialist Republics 苏维埃联盟/苏维埃社会主义共和国联盟(USSR);the U～Jack(the U～flag)英国国旗;〖同〗association，league，corporation;

(4)联合(工)会(organization of workers，etc)[C， Gp]：join/form a～参加/建立工会;join together in a trade～一起加入工会;the cigar-maker's/Students/“Post Office workers”U～ 烟草工人联合会/学生会/邮政工人协会; the Mother's U～母亲协会;university～s 大学联合俱乐部;〖同〗association;

(5)结婚，婚姻(act of uniting or of being united in marriage or sexual intercourse)[C](fml or joc)：a happy～blessed by children 得到儿女祝福的幸福姻缘;joined in perfect～结成美满婚姻;

(6)联管节(coupling device for connecting parts， as pipes or rods)[C];

→′unionize， -ise v 使成立联合组织;′unionist n 联合主义者;′unionism n 联合原则