In phonetics, a triphthong (from Greek τρίφθογγος, "triphthongos", literally "with three sounds," or "with three tones")'s a monosyllabic vowel combination involving a quick but smooth movement of the articulator from one vowel quality to another that passes over a third. While "pure" vowels, or monophthongs, are said to have one target articulator position, diphthongs have two, and triphthongs three. Examples Stress on the first element English… (More on Triphthong)