IPA: /ˈdɪfθɔŋ/
KK: /ˈdɪfθɔŋ/
A sound made by combining two vowel sounds in one syllable, where the sound starts as one vowel and glides into another, like the sound in the word 'coin'.
In English, the word 'coin' contains a diphthong.
Diphthong → It is formed from "di-" (meaning two) and "phthongos" (meaning sound or voice in Greek). The word "diphthong" refers to a complex vowel sound that begins with one vowel sound and glides into another, thus involving two sounds.
Think of 'two' ('di-') sounds blending together ('phthongos') to remember that a diphthong is a combination of two vowel sounds.