Definition
Vowel
A vowel is a speech sound produced with a relatively open vocal tract, without the closure or friction-producing narrowing characteristic of many consonants. A vowel letter is a written symbol used to represent vowel sounds.
Example
Example
The sounds represented by a in cat, ee in see and oo in food are vowels. The letter y represents a vowel sound in happy but a consonant sound in yes: the letter alone does not determine the sound category.