To summon (a devil or spirit) by magical or supernatural power. To influence or effect by or as if by magic: tried to conjure away the doubts that beset her. To call or bring to mind; evoke: "Arizona conjures up an image of stark deserts for most Americans\u201d ( American Demographics). To imagine; picture: "a sight to store away, then conjure up someday when they were no longer together\u201d ( Nelson DeMille). Archaic To call on or entreat solemnly, especially by an oath. To perform magic tricks, especially by sleight of hand. To summon a devil by magic or supernatural power. To practice black magic. Chiefly Southern U.S. See hoodoo. Chiefly Southern U.S. Of or practicing folk magic: a conjure woman.