English

Definition of zwieback noun from the Oxford Advanced Learner's Dictionary

 

zwieback

 noun
noun
BrE BrE//ˈzwiːbæk//
 
; NAmE NAmE//ˈzwiːbæk//
 
[uncountable] (North American English, from German)
 
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slices of sweet bread that are cooked again until they are dry and hard Word OriginGerman, literally ‘twice-bake’.
See the Oxford Advanced American Dictionary entry: zwieback