mandateEnglishOxford American Thesaurusmandate noun 1 he called an election to seek a mandate for his policies: authority, approval, acceptance, ratification, endorsement; sanction, authorization. 2 a mandate from the UN was necessary: instruction, directive, direction, decree, command, order, injunction, edict, charge, commission, bidding, warrant, ruling, ordinance, law, statute, fiat; in Tsarist Russia ukase; in Spanish-speaking countries pronunciamento.