Organs of speech and hearing
Pure vowel sounds
The definition of pure vowel in the dictionary is a vowel that is pronounced with more or less unvarying quality without any glide; monophthong. Pure vowel sounds are listed below:
A dipthong also known as a gliding vowel, is a combination of two adjacent vowel sounds within the same syllable.
Classification of diphthongs on the closing and the centring Type Constituent vowels Closing eɪ, ɔʊ, ɑɪ, ɑʊ, ɔɪ Centring ɪə, ɛə, ɔə, ʊə
Long vowels / diphthongs: [ɪ] eɪ, aɪ, ɔɪ, ʊɪ [ʊ] əʊ, ɑʊ [ə] ɪə, ɛə, ɔə, ʊə