vizierPronunciation: /vɪˈzɪə, ˈvɪzɪə/Definition of vizier noun historical a high official in some Muslim countries, especially in Turkey under Ottoman rule. Derivatives vizieratePronunciation: /-rət/ noun vizierialPronunciation: /vɪˈzɪərɪəl/ adjective viziership noun Origin: mid 16th century: via Turkish from Arabic wazīr 'caliph's chief counsellor'vizier in other Oxford dictionaries Definition of vizier in the US English dictionary