"Jester's hat" is a common synonym for "fool's cap," as both refer to a comical headwear often worn by court jesters. Another synonym is "dunce cap," which is typically used to describe a conical hat with a single jester-like tail, often used as a form of punishment for students who perform poorly in school. "Fool's hood" also describes a similar headgear, but with a more hood-like shape. "Joker's hat" is another synonym often used interchangeably with "fool's cap," referring to a similar headwear worn by clowns or jesters during performances. Ultimately, all of these synonyms refer to a similar type of festive headwear meant to evoke humor and joviality.
