noun
mortarboard; square academic cap
Refers to the square-topped cap traditionally worn by Japanese university students, especially in the past. In modern contexts, it is often associated with graduation ceremonies or nostalgic imagery.
卒業式では、多くの学生が角帽をかぶる。
At the graduation ceremony, many students wear mortarboards.
昔の大学生はよく角帽をかぶっていた。
University students in the old days often wore square academic caps.