How many letters are there in the alphabet ? - Worldometer An alphabet is a set of characters or symbols that visually represent the sounds of a spoken language. “ Alphabet ” is a compound word that combines the first two letters of the Greek alphabet , “alpha” and “beta”. Learn the difference between uppercase and lowercase letters, vowels and consonants, and how to use them in sentences and titles. Find alphabet worksheets for kids to practice at home. The English alphabet has 26 letters, starting with A and ending with Z . They can be large letters (ABC) or small letters (abc).