👉 Vowel is a type of sound that is produced by the front teeth of the mouth. It differs from consonants in that it has a soft, open end and does not have a roof over the back of the throat like vowels do. The most common types of vowels are the /a/ (as in "air"), /e/ (as in "eye"), /i/ (as in "ice"), /o/ (as in "orange"), and /u/ (as in