From Longman Business Dictionary
overrideo·ver·ride /ˌəʊvəˈraɪdˌoʊ-/ verb (past tensepst overrode /-ˈrəʊd-ˈroʊd/, past participlepp overridden /-ˈrɪdn/) [transitiveT] to ignore a decision, rule, law etc made by a person or organization with less authorityIt has the power to override state banking laws to sell insolvent thrifts.