nul·li·fy /ˈnʌlɪfaɪ/ verb (nullified, nullifying) [transitiveT]1 lawSCL to officially state that something has no legal force 宣布…在法律上無效The election results were nullified because of voter fraud. 由於選票造假,選舉結果被宣布無效。
2 formalVALUE#EFFECTIVE# to make something lose its effect or value 使無效;使無價值 SYN cancel outRecent inflation could nullify the economic growth of the last several years. 最近的通貨膨脹可能會抵消過去數年的經濟增長。
—nullification /ˌnʌlɪfɪˈkeɪʃən/ noun [uncountableU]