U+0658 "٘" Arabic Mark Noon Ghunna Unicode Character

U+0658 "٘" Arabic Mark Noon Ghunna is a combining diacritical mark used in the Arabic script to indicate nasalization, specifically the ghunna sound, which is a nasal resonance associated with the letter noon (ن) in certain Quranic recitation and phonetic contexts. Applied directly above or below a base character, it modifies pronunciation by signaling that the following noon sound should be articulated with a distinct nasal quality, as required in Tajweed rules for proper Quranic reading. This combining mark distinguishes subtle phonetic nuances that are essential for accurate recitation but does not represent an independent letter, functioning instead as a supplementary notation within the Unicode Standard's Arabic block.