
Tajweed refers to the rules for the correct pronunciation and recitation of the Holy Quran, including the sounds of the letters, attributes, Madd, tanween, and more.
Knowing tajweed rules will help you recite Quran perfectly without mistakes and in a very beautiful way.
Among tajweed rules, there are some related to noon sakina and tanween, which are Izhar, Iqlab, Idgham. To learn what Idgham is in Tajweed and its types in detail, continue reading this post.
Tajweed in the language is: “improving”, “precision”, and “perfection”, it is said… You make something good if you improve it and master it, and it’s the opposite of (badness).
Technically, tajweed means pronouncing each letter of the Qur’an from its articulation point (مخارج in Arabic) without changing. It means pronouncing letters correctly according to the rules of Tajweed, laid down by the Islamic scholars. And it is said: Tajweed means giving each letter its right and its due of the exits and attributes.
Ingham in the Arabic language means to merge something into another. And in terminology, it means merging a constant letter into a vowel letter so that the two letters become one stressed letter- equals two.
Idgham in tajweed is applied in noon Sakin or Tanween, when they are preceded by any of those six letters ( ي، ر، م، ل، و، ن).
1- The Noon sakin (static Noon) is an original letter of the word like منْ, and the tanween is an additional nun مlike غفورًا
2- The Noon sakin is fixed in the pronunciation and the writing, and the tanween is fixed in the pronunciation but not in writing ( as it can be tanween with Dumma غفورٌٌ, tanween with kasra غفورِِ, and tanween with fatha like غفورًا.
3- The noon sakin can be found is in the names, verbs, and letters, like من، ينمو، منتهى. But tanween can only be found in nouns, not in verbs or letters, except (لَيَكُونًا) in Surat Yusuf and (لَنَسْفَعًا) in Surat Al-Alaq. in the two cases, this tanween isn’t original but light noon used to emphasis the verb and called in Arabic نون التوكيد الخفيفة.
4- The consonant can be located in the middle of the word or at the end, but tanween is only located at the end.
| Nun Sakinah | Tanween |
| Original or Additional | Always an Additional Nun |
| In nouns, verbs, or participles | Only in nouns |
| In the middle or end of a word | Only in the middle of a word |
| Pronounced & Written | Pronounced as Nun but Not Written as Nun |
| Pronounced as Nun on stopping or joining | Pronounced as Nun Only when joining |
There are the six letters that make up the word يرملون. They are ياء, راء, ميم,.نون , لم, واو
There are three types of Idghaam, which are
When it comes to Quran recitation rules, this term means to merge. Idgham in Tajweed means joining a non-vowel with a vowel so that the two letters become one letter of the second type.. read more to know What Are Idgham Rules.
Idghaam Mutamaathilain is devidied into types
occurs when a voweled letter precedes another voweled letter such that they become one letter with a shaddah on it.
قَالُواْ يَا أَبَانَا مَا لَكَ لاَ تَأْمَـنَّـا عَلَى يُوسُفَ وَإِنَّا لَهُ لَنَاصِحُونَ
The original word is تأمننا but the two letters are merged into تأمنّا
قَالَ أَتُحَاجُّونِّـي فِي اللّهِ وَقَدْ هَدَانِ
The original word is تحاجونني, but the two letters are merged into تحاجونى
The meeting of a consonant letter with another vowel so that they become one stressed letter of the second gender. Like in this verse
فَمَا رَبِحَت تِّـجَارَتُهُمْ وَمَا كَانُواْ مُهْتَدِينَ
when two letters similar in their shape, pronunciation, and traits, for example, meet together. One of them is consonant, and the other is a vowel.
See this example
“فَلا يُسرِفْ فِي القَتلِ”
In this sentence, the letter ف in يسرف is similar to the letter ف in فى, so both letters are merged into one letter.
مَا سَلَكَكُمْ فِي سَقَرَ
اضرب بِّعصاك
Read more: Learn Noorani Qaida In 10 Simple Steps
If two letters come, the first is a consonant and the second is a vowel, and they are pronounced from the same articulation point but differ in their attributes, the first letter must be merged into the second.
يَلْهَث ذًّلِك
for both ث and ذ are emitted from the tip of the tongue.
{يا بُنَيَّ ارْكب مَّعنا}
Both أ and ى, which are called madd letters, are emitted from the tip of the tongue.
قَالَت طَّائِفَةٌ
قَد تَّعْلَمُوَن
ت , ط and د are pronounced from the same articulation point
This Idghaam occurs when two letters have different articulation points. However, they are close together (whereas the previous shared the same makhaarij.
قُل رَّبِ
بَل رَّفَعَهُ
There are two types of Idgham : With Gunna, and without Gunna.
When noon sakin or tanween is followed by any of those four letters: ي، ن، م، و., Noon Sakin or tanween isn’t recited, but the reciter stresses the letter after ( pronounces it as if there is shadda on it)
Example:
{إِنْ يَرَوْا} ، {فِئَةٌ يَنصُرُونَهُ}
and they are read like:
فِئَتيَنْصرونه and إيَروا
(ن + و):
{مِنْ وَالٍ}، {إِيمَانًا وَهُمْ}
and they are read like: “
مِوَّال “،” إيمانَوَّهم”
(ن + م):
{مِنْ مَاءٍ}، {صِرَاطًا مُسْتَقِيمًا},
and they are read like
مِمَّاء ” ، ” صراطمّسْقيماً “.
( ن + ن):
{إِنْ نَحْنُ}، {مَلِكًا نُقَاتِلْ},
and they are read like
إنَّحن”، “مَلِكنُّقاتل”.
Exceptions are made from this rule are
It occurs when Noon sakin or tanween is followed by ل or ر.
Here are many examples that can explain the rules further. Try to guess the type of Idghaam and the reason why you chose it then read the explanation
| Example | Type | Explanation |
| خيرًا يره | Idghaam with Gunna | Tanween is followed by ى |
| شىءِِ وكيل | Idghaam with Gunna | tanween is followe by و |
| خير من | Idghaam with Gunna | Noon sakin is followed by م |
| ولن نشرك | Idghaam with Gunna | Noon sakin is followed by ن |
| مِّن لَّبَنٍ | Idghaam without Gunna | Noon sakin is followed by ل |
| وَقِيلَ مَنْ رَاقٍ) | Idghaam without Gunna | Noon sakin is followed by ر |
| غَفُورٌ رَّحِيمٌ | Idghaam without Gunna | Tanween is followed by ر |
| قَيِّمًا لِيُنذِرَ | Idghaam without Gunna | Tanween is followed by ل |
Idghaam is one of the essential must-to-know rules in tajweed. It adds a tremendous tone to recitation. In this article, you’ve learned much about Idghaam meaning, types, and letters with many examples from Quran.
If you find this article helpful, please, share it with your connections on social media so they can benefit too.

