diphthong
Pronunciation:
/ˈdɪfθɑŋ//ˈdɪfθɒŋ(ɡ)//ˈdɪfθɔŋ/noun
Definitions
A complex vowel sound that begins with the sound of one vowel and ends with the sound of another vowel, in the same syllable.
A vowel digraph or ligature.