The letter M is the thirteenth letter in the English alphabet. The English alphabet consists of 26 letters, starting with A and ending with Z. Each letter has a specific position or order, and M falls in the middle of the alphabet. It comes after L and before N in the sequence. The letter M represents the sound /m/ in many languages, including English. It is often pronounced as /m/ at the beginning of a word, as in "man," and can also be pronounced as /mm/ before a vowel, as in "hummus".