The red monster sounds out the vowels 'a', 'e', 'i', 'o' and 'u'. NARRATOR: Ah, eh, ii, ohh and uhh. Every word needs one. All the other letters are called consonants, and there's quite a lot of them.

Watch this short video to see some more examples of silent letter words. Vowel sounds are made by the letters 'a', 'e', 'i', 'o' and 'u'. Unstressed vowels are vowel sounds that are hard to hear ...

all representing consonants. Unlike English, consonant clusters are not common in Arabic. Thus, each of its 28-letter consonants comes with a diacritic or vowel sound that joins them together in a ...