Gaf may be the name of three different Arabic letters, all representing the sound of "g". They are all forms of the letter k?f, with additional diacritics, such as dots and lines. There are three forms, each used in different places: · ? in several languages · in Malay · in Moroccan Arabic Gaf with line ? is based on k?f with an additional line. It is not used in Arabic itself, but may be used to represent a voiced velar stop (IPA: ) when writing other languages.It used in Persian ferequently and it is one of four Persian letters which are not found in Arabic. Gaf with single dot ? is derived from a variant form (?) of k?f with the addition of a dot. It is not used in Arabic itself, but is used in the Jawi script of Malay to represent a voiced velar stop (IPA: ). Unicode includes two forms on this letter: one based on the standard Arabic k?f,