History, etymology, and pronunciation of k , the 11th letter of the alphabet. It has changed its shape less perhaps than any other letter in the history of the alphabet. The sound represented by the letter throughout its known history has been the unvoiced velar stop. K , or k , is the eleventh letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. In today's lesson, we explored the letter " K ," the 11th letter of the alphabet, learning how to write both the uppercase and lowercase forms. We practiced saying the strong " k " sound and discovered fun words that start with " K ," such as "kangaroo," "kite," and "kittens." Master the word " K " in English: definitions, translations, synonyms, pronunciations, examples, and grammar insights - all in one complete resource.