dunce hat
The 'dunce hat' was historically used in schools as a form of punishment to shame students for poor performance or misbehavior.
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Definition
B2Education
(historical)A conical hat, often made of paper, worn by students to indicate poor performance or misbehavior.
Example
- The teacher made him wear the dunce hat for talking during the lesson.
C2Topology
(technical, academic)A topological space formed by identifying the sides of a triangle's boundary in a specific manner.
Similar
Terms that have similar or relatively close meanings to "dunce hat":
dunce capcocked hatinverted hattop hatcork hatbowler hatshovel hatflat captinfoil hat