- A vowel is one of the letters a, e, i, o and u. All the other letters are consonants. Sometimes y is also considered to be a vowel.
- (linguistics) A vowel is a sound in the middle of a syllable. It is louder and longer than consonant sounds.
- English has more than 15 vowel sounds, but only five vowel letters!
- Your mouth is more open when you say a vowel than when you say a consonant.