U+00A8 "¨" Diaeresis Unicode Character

U+00A8 "¨" Diaeresis is a spacing diacritical mark used in various writing systems to indicate that a vowel is to be pronounced separately from a preceding vowel, as in the English word "naïve" or the French "Noël," rather than as part of a digraph or diphthong. It is distinct from the similar looking umlaut, which indicates a sound change in Germanic languages, though the same glyph is often used for both purposes in digital typography. This character is a visible, standalone symbol that occupies its own horizontal space, unlike its combining counterpart (U+0308) which is placed directly over a letter. Its usage appears across many languages including French, Dutch, Greek, and Spanish, where it primarily serves to prevent vowel blending and clarify pronunciation.