Oxford Dictionary English mortar board nounnoun BrE BrE//ˈmɔːtə bɔːd// ; NAmE NAmE//ˈmɔːrtər bɔːrd// Exams and degrees Add to my wordlistjump to other results enlarge image a black hat with a stiff square top, worn by some university teachers and students at special ceremonies compare cap See related entries: Exams and degreesCheck pronunciation: mortar board oxfordlearnersdictionaries.com
