Ghunnah

The ghunnah is defined as a nasal sound that is emitted from the nose. This is a required characteristic of the

نون  and ميم

• The ghunnah cannot be separated from these two letters and is an inherent part of their makeup. 

• The ghunnah is not a letter but a characteristic of these two letters, but it has its own distinct place of articulation. 

• The ghunnah is articulated from the hole in the nose that continues back towards inside the mouth.

It is a nasal sound coming from the nasopharynx without any influence from the tongue.  If you hold your nose closed you will not be able to produce the ghunnah sound, but the letters themselves that have this associated sound with them are not articulated from the nose.