Vowel pointing systems, namely the Arabic harakat ( ), which, respectively, mark abbreviations or acronyms, and Greek diacritical marks, which showed that letters of the alphabet were being used as numerals.In the Hanyu Pinyin official romanization system for Chinese, diacritics are used to mark the tones of the syllables in which the marked vowels occur.
This varies from language to language, and may vary from case to case within a language.
Right now, nobody can say – but perhaps it is this ‘hard-to-pin-down-ness’ that has managed to keep the Voynich’s mystery alive for all this time.
Walter Lewin, age 78—perhaps the most celebrated physics teacher in MIT’s history—has been stripped of his emeritus status and barred from campus, and all of his physics lectures removed from Open Course Ware, because an internal investigation found that he had been sexually harassing students online.
In Gaelic type, a dot over a consonant indicates lenition of the consonant in question.
In other alphabetic systems, diacritical marks may perform other functions.