bun Syllabification: (bun)Pronunciation: /bən/Translate bun | into French | into German | into Italian | into Spanish Definition of bun noun 1a bread roll of various shapes and flavorings, typically sweetened and often containing dried fruit. 2a hairstyle in which the hair is drawn back into a tight coil at the back of the head. 3 (buns) informal a person’s buttocks. Phrases have a bun in the oven informal be pregnant. Origin: late Middle English: of unknown originbun in other Oxford dictionaries Definition of bun in the British & World English dictionary
