() to make sth such as an agreement or order lose its legal force 使失去法律效力；废止◆A court has nullified the ban on the proposed merger. 法庭已废止了对这项合并计划的禁令。◆The firm is taking legal action to nullify the $5 million compensation payment. 这家公司正采取法律诉讼以废止赔偿 500 万元的的判决。SYNinvalidate , void
() to make sth lose its effect or power 使无效；抵消◆This tax will nullify efforts to revive the regional economy. 这项税收将使复苏地区经济的努力成为泡影。▸nullification /ˌnʌlɪfɪˈkeɪʃn/