22.  Full Ghunna – Idghaam (Merge)

When merging of two letters take place and the Ghunna sound is produced, it is referred to as Idghaam. There are two separate cases of merging – Noon-Sakin and Tanween as well as Meem-Sakin.

Noon-Saakin & Tanween

Firstly, let’s look at Noon-Sakin and Tanween. When the letter noon carries a Sukun it is called Noon-Sakin, and Tanween refers to the three short vowels when doubled up. The four letters of Idgham that produce the ‘full’ Ghunna sound are ى م ن و.

If after نْ (Noon-Saakin) or   ً   ٍ  ٌ (Tanween) there is any of the four Idgham letters (ى  م  ن  و), merge the letters and read with a ‘full’ Ghunna. This change, i.e., the merging of letters and sound is referred to as Idghaam. The examples below show this clearly.

وَمَنْيَّعْمَل , سِرَاجًا وَهَّاجًا.

Meem-Saakin

The second category of merging (Idghaam) relates to Meem-Sakin. When the letter Meem carries a Sukun مْ it is called Meem-Sakin. If after Meem-Saakin there is a م, merge both Meems and read with a ‘full’ Ghunna for two Harakaat. The two examples below show Idghaam with Meem-Sakin.

اِلَيْكُمْ مُّرْسَلُوْنَ , وَلَهُمْ مَّا يَشْتَهُونَ