The letter “E” is a vowel in the English alphabet and it is the fifth letter of the alphabet. The sound of the letter “e” can be pronounced in different ways depending on the word it is used in, such as the long “e” sound like in “bee” or the short “e” sound like in “bet”. The letter “e” is used in many words in the English language and it is an important component in constructing words and sentences. Additionally, the letter “e” is used in many other languages and writing systems around the world.