disaffirm
disaffirm v. (1)撤销；拒绝履行(合同等) (2)宣告(合同等)无效
宣告无效
avoidance
avoidance n. (1)逃避；回避；规避 (2)避免；忍住；节制 (3)使无效；宣告无效；撤销；废除 (4)(=confession and avoidance) (5)(圣职的)出缺
avoidance n. (1)逃避；回避；规避 (2)避免；忍住；节制 (3)使无效；宣告无效；撤销；废除 (4)(=confession and avoidance) (5)(圣职的)出缺