A person who acts unwisely or imprudently; a silly person. He felt like a fool after realizing he had been tricked.
A person who is easily tricked or deceived. She played the fool in the magician's act, much to the audience's amusement.
A jester or clown, especially one retained in a royal or noble household. The king's fool entertained the court with his witty jokes and antics.
A dessert made of puréed fruit mixed with cream or custard. For dessert, we had a delicious raspberry fool.
The card numbered zero in a tarot deck, typically depicting a young man setting out on a journey; the Fool card. In many readings, the Fool symbolizes new beginnings and potential.