diphthong
Word family adjectivediphthongaladverbdiphthongallynoundiphthongizationdiphthongverbdiphthongize
diph·thong /ˈdɪfθɒŋ, ˈdɪp- $ -θɒːŋ/ noun [countableC] technical SLa vowel sound made by pronouncing two vowels quickly one after the other. For example, the vowel sound in ‘main’ is a diphthong. 复合元音,双元音〔如main中的元音〕 Origin diphthong (1400-1500) French Late Latin diphthongus “two sounds”, from Greek phthongos “voice, sound”