1. 脱离：Calhoun)说服最热切而激进的关税反对者采纳拒行联邦法规(nullification)的宗旨作为应对策略,而非进行实质性脱离(secession). 新一届的南卡罗莱那州议会迅即召集议员当选人召开州内会议. 会议中表决通过宣布1828年与1832年的关税法在州内无效作废(null and void).

2. 脱离,退出：Concession:让步,特许权 | Secession:脱离,退出 | Cater:迎合,承办

1. (从国家、大集团的)退出，脱离，分离
    The secession of a region or group from the country or larger group to which it belongs is the action of formally becoming separate.

secession的反义词

    e.g. ...the Ukraine''s secession from the Soviet Union.
           乌克兰之退出苏联

1. formal separation from an alliance or federation

    Synonym: withdrawal

2. an Austrian school of art and architecture parallel to the French art nouveau in the 1890s

    Synonym: sezession