Entry 3 senses · 2 variants Webster, 1913 Voodoo /vo͞od'-o͞oˌ/ · Voo·doo · IPA /ˈvudu/ n. a. 01 n. See Voodooism. 1. See Voodooism. See: Voodooism 2. One who practices voodooism; a negro sorcerer. 02 a. Of or pertaining to voodooism, or a voodoo; as, voodoo incantations. 1. Of or pertaining to voodooism, or a voodoo; as, voodoo incantations.