se·cede/sɪ`sid; sɪˈsiːd/ v [I] formal to formally leave an organization, especially because of disagreement about its aims, principles etc 【正式】 〔尤因与某组织的目标、原则等有分歧而〕退出，脱离: The southern states wanted to secede from the US in the 1850s. 19 世纪 50 年代，南方诸州想脱离美国。