diphthong
noun /ˈdɪfθɒŋ/,  /ˈdɪpθɒŋ/
  /ˈdɪfθɔːŋ/,  /ˈdɪpθɔːŋ/
 (phonetics)- a combination of two vowel sounds or vowel letters, for example the sounds /aɪ/ in pipe /paɪp/ or the letters ou in doubt compare monophthong, triphthongWordfinderTopics Languagec1- cluster
- consonant
- diphthong
- elide
- intonation
- phonetics
- pronunciation
- stress
- tone
- voiced
 Word Originlate Middle English: from French diphtongue, via late Latin from Greek diphthongos, from di- ‘twice’ + phthongos ‘voice, sound’.