Noon Saakin and Tanween Rules (With Examples)

The rules of Noon Saakin and Tanween are usually the first Tajweed rules students study in depth, because they appear on almost every line of the Quran. There are only four of them, and each one depends on a single question: which letter comes next? This guide explains all four with their letters, real examples from the Quran and the mistakes to watch for.

What Are Noon Saakin and Tanween?

A noon saakin is a noon with a sukoon (نْ), meaning it has no vowel. Tanween is the doubled vowel sign at the end of a word (ـً ـٍ ـٌ), which is pronounced as an extra "n". Because tanween sounds like a noon saakin, both follow exactly the same rules.

The Four Rules at a Glance

1. Izhar: Pronouncing the Noon Clearly

When a noon saakin or tanween is followed by one of the six throat letters, ء ه ع ح غ خ, the noon is pronounced clearly, with no extra nasal sound. The throat letters are made far from the noon's point of articulation, so the two sounds stay separate.

2. Idgham: Merging into the Next Letter

Idgham happens before the six letters gathered in the word يَرْمَلُونَ (yarmaloon). The noon disappears into the next letter, which is pronounced with a shaddah. There are two kinds:

Idgham with ghunnah: ي ن م و

Before ي ن م و (remember them as يَنْمُو, yanmu), the noon merges and a ghunnah of about two counts is held.

Idgham without ghunnah: ل ر

Before ل and ر, the noon merges completely and no ghunnah is held.

3. Iqlab: Changing the Noon into a Meem

When a noon saakin or tanween is followed by ب, the noon sound changes into a hidden meem with a ghunnah of about two counts. The lips close gently, not tightly. In most printed copies of the Quran you will see a small meem (ۢ) written above the noon or tanween as a reminder.

4. Ikhfa: Hiding the Noon

Before the remaining 15 letters, ت ث ج د ذ ز س ش ص ض ط ظ ف ق ك, the noon is neither pronounced clearly nor fully merged. It is hidden: the tongue does not press firmly on the noon's place, a ghunnah of about two counts comes through the nose, and the mouth prepares for the next letter.

Common Mistakes

• Pronouncing the noon in idgham: in مَن يَقُولُ the noon should disappear completely into the yaa.
• Reading ikhfa as a clear noon: in أَنتُمْ the tongue should not press firmly before the taa.
• Pressing the lips hard in iqlab: the meem is light and hidden, with the ghunnah coming through the nose.
• Uneven ghunnah: holding it for one count in one place and four in another. Aim for about two counts every time.
• Applying idgham inside a word: remember دُنْيَا and the other three exceptions.

How to Practise

1. Choose a short Surah you know well, such as one from Juz Amma.
2. Find every noon saakin and tanween, and write the rule next to each one.
3. Recite slowly, applying each rule, then recite at normal speed.
4. Recite to a teacher, who can hear whether your ghunnah and ikhfa are correct.

Once these rules feel natural, move on to the rules of Meem Saakin, Qalqalah and Madd in our guide to Tajweed rules for beginners, and make sure each letter is coming from its correct place with our Makharij guide.

Final Thoughts

Four rules, one question: which letter comes next? Learn the letter groups, listen to how each rule sounds, and practise them in Surahs you already know. Within a few weeks of regular practice, Izhar, Idgham, Iqlab and Ikhfa will become part of how you naturally recite. Our online Tajweed course takes you through these rules with a teacher who listens to every verse.