U+00EF "ï" Latin Small Letter I with Diaeresis Unicode Character

U+00EF "ï" Latin Small Letter I with Diaeresis is a precomposed character that represents the letter "i" modified by a diaeresis, a diacritical mark consisting of two dots placed above it. This character is used in several languages, including French and English, where it indicates that the "i" should be pronounced separately from a preceding vowel, as in the French word "naïf" or the English word "naïve," to show that the two vowels are not part of a digraph or diphthong. In languages like Catalan, Dutch, and Afrikaans, it also appears in loanwords or specific lexical contexts to denote a similar syllabic break or a distinct phonetic value.