› [C, usually singular, or U] an official order or requirement to do something: mandate to do sth Norad's mandate is to promote effective management of funds for development assistance. The region is already under federal mandate to reduce air pollution. › [C, usually singular, or U] GOVERNMENT official permission or the right to do something, usually given as the result of a vote: mandate to do sth The government claimed that it had a mandate to raise taxes. The CEO disputed that the disposal of the 10.5 million shares was based on the shareholder mandate. › [C] GOVERNMENT the period of time that a government or an elected person is allowed to remain in power: She has just another two months in office before her mandate comes to an end.