TRIPHTHONG Meaning of TRIPHTHONG in English triphthong BrE AmE ˈtrɪf θɒŋ ˈtrɪp- AmE \ -θɔːŋ -θɑːŋ ▷ triphthong|s z Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012