[{"Bold_text": "noun", "List Items": ["Phonetics.an unsegmentable, gliding speech sound varying continuously in phonetic quality but held to be a single sound or phoneme and identified by its apparent beginning and ending sound, as theoi-sound oftoyorboil.", "(not in technical use)a digraph, as theeaofmeat.a ligature, as æ.", "a digraph, as theeaofmeat.", "a ligature, as æ."]}, {"Bold_text": "verb (used with or without object)", "List Items": ["to diphthongize ."]}]