A vowel is a sound where air coming from the lungs is not blocked by the mouth or throat. All normal English words contain at least one vowel. Vowels have two sounds: a short sound and a long sound.
A, E, I, O, U and Y are the English vowels, although 'Y' can also behave as a consonant when it is at the beginning of a word.
A, E, I, O, U are the short vowels. When there is a single vowel in a short word or syllable, the vowel usually makes a short sound. These short vowels usually appear at the beginning of the word or between two consonants.
1. Ant: Here, short 'a' appears at the beginning of the word.
2. Cat: Here, short 'a' appears in between two consonants that is 'C' and 'T'.
Some other short vowels words are: -
1. short a: 'a' as in cat.
2. short e: 'e' as in pen.
3. short i: 'i' as in fin.
4. short o: 'o' as in frog.
5. short u: 'u' as in cub.