魔法 | Witchcraft in general. Applies to anything – flying, shooting lighting, turning dudes into trout. $$$ |
魔術 | Basically the same as 魔法。 But, when you’re talking about “magical thinking’ or ‘Mexican magic realism’ or ‘voodoo economics’, use 魔術、 not 魔法. |
手品 | The shit is that David Copperfield does. |
魔女 | A witch. |
魔法使い | A warlock. |