/ ˈmʌfɪn; NAmE / noun
1.
( BrE ) ( NAmE ˌEnglish ˈmuffin ) a type of round flat bread roll, usually toasted and eaten hot with butter
2.
a small cake in the shape of a cup, often containing small pieces of fruit, etc. :
a blueberry muffin
For more information see the Cultural Guide
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WORD ORIGIN
early 18th cent.: of unknown origin.