Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “mortarboard”

mortarboard

noun [C]  /ˈmɔr·t̬ərˌbɔrd, -ˌboʊrd/ us  
a black hat with a square, flat top, worn by some students and teachers on formal school occasions: Following the ceremony, the graduating seniors all threw their mortarboards into the air.
(Definition of mortarboard from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of mortarboard?
Add Cambridge dictionaries to your browser to your website

Definitions of “mortarboard” in other dictionaries

Translations of “mortarboard”

Word of the Day

hoppy

like hops (= dried fruit used to make beer)

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More