Nūn ġuṇnā
Nūn ġunnā, is an additional letter of the Arabic script not used in the Arabic alphabet itself but used in Urdu, Saraiki, and Shahmukhi Punjabi to represent a nasal vowel,. In Shahmukhi, it is represented by the diacritic.
It is a nasal vowel used in many Indo-Aryan languages and Iranian languages. It is represented by the International Phonetic Alphabet by the sound of. It is a dotless noon. In Saraiki and Balti, nūn ġunnā is sometimes written as ن٘.