A dipthong is a sound made by combining two vowels ,specifically when it starts as one vowel sound and goes to another ,like the oy sound in oil. dipthong comes from the Greek word dipthongos which means "having two sounds "
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Diphthongs refer to the sounds which are formed when there are two vowels in a single word and the pronunciation of one vowel moves to the other.For EG. ---> Word LOUD has two vowels - O & U. If you'll pronounce it then the sound will change from aa to oo. Think on the basis of sound like in Hindi.
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