Learn how to say Dunce correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word dunce:
a person who is slow at learning; a stupid person:
he was baffled by arithmetic and they called him a dunce at school
early 16th century: originally an epithet for a follower of John Duns Scotus (see Duns Scotus, John), whose followers were ridiculed by 16th-century humanists and reformers as enemies of learning