Actually you can write "Xitter" ("x" is pronounced "sh" in the standard transliteration of Chinese and many other languages, although most of them are not reall

Actually you can write "Xitter" ("x" is pronounced "sh" in the standard transliteration of Chinese and many other languages, although most of them are not really widespread, like Basque https://en.wikipedia.org/wiki/Basque_alphabet https://en.wikipedia.org/wiki/Basque_alphabet and Maltese https://en.wikipedia.org/wiki/Maltese_alphabet https://en.wikipedia.org/wiki/Maltese_alphabet).