C2 施魔法，念咒语;使…入魔
to use words thought to be magic, especially in order to have an effect on someone
The old woman cast a spell on the prince and he turned into a frog. 老太婆对王子施了魔法，他变成了一只青蛙。
The wizard cast a spell on her that turned her to stone.
The good fairy cast a spell that sent the princess to sleep.
The sprite casts a spell so that no one can remember what happened in the woods.
figurative When I was 17, jazz cast its spell on me (= I started to like it very much). 我17岁的时候对爵士乐着了迷。
See also: cast verb (MAGIC)