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English definition of “vowel”

vowel

noun [C] uk   /vaʊəl/ us  
B1 a speech sound produced by humans when the breath flows out through the mouth without being blocked by the teeth, tongue, or lips: A short vowel is a short sound as in the word 'cup'. A long vowel is a long sound as in the word 'shoe'.
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Phonology and phonetics
B1 a letter that represents a sound produced in this way: The vowels in English are a, e, i, o, and u.Lettering and alphabetsLetters of alphabets
(Definition of vowel from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of vowel?
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