Fool's caps, also known as dunce caps, are a traditional symbol of ridicule. However, there are several other words used to describe this type of headwear. One common synonym is the dunce hat, a term that has been used for centuries to refer to a conical hat worn by someone who is considered stupid or slow-witted. Another synonym for fool's caps is the fool's hat, which is often made from brightly colored fabric or materials to further emphasize the wearer's foolishness. Other words used to describe this type of hat include the jester's cap, the clown hat, and the court jester's hat.