What is a Vowels (with Examples) ?

The letters A, E, I, O, and U are the called vowels. The other letters in the alphabet are called consonants. A vowel is classified as a speech sound produced by a comparatively open configuration of the vocal tract, with vibration of the vocal cords but without audible friction.  A vowel sound (but not necessarily a vowel in the actual spelling) will be present in a syllable. Click to see the vowels in this sentence: The quick brown fox jumped over the lazy dog.