ZWIEBACK Meaning of ZWIEBACK in English zwieback BrE AmE ˈzwiː bæk -bɑːk AmE \ ˈzwaɪ- ˈswiː-, ˈswaɪ-, ˈzwiː ▷ zwieback|s s Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012