Ikhfa

What is Ikhfa?

Ikhfa, literally "concealment", is a rule of tajwid in which a silent noon (نْ) or tanwin is pronounced in a hidden way — neither fully articulated as it would be in izhar, nor fully merged as it would be in idgham — while a nasal ghunnah is sustained for about two counts. The tongue takes the position of the letter that follows without quite touching, and the sound comes through the nose.

The Fifteen Letters of Ikhfa

Ikhfa of the silent noon occurs before the fifteen letters that remain after removing the six letters of idgham and the six letters of izhar and the one letter of iqlab from the twenty-eight Arabic letters. They are:

ت ث ج د ذ ز س ش ص ض ط ظ ف ق ك

Examples: anzalnā ( أَنْزَلْنَا ), man dhā ( مَن ذَا ), an tadhbahū ( أَنْ تَذْبَحُوا ), min qablihim ( مِنْ قَبْلِهِمْ ). In each, the silent noon or tanwin is neither loud nor merged but hidden with ghunnah.

Where Ikhfa Sits Between Izhar and Idgham

The four rules of the silent noon and tanwin form a scale of increasing concealment:

• Izhar — clear pronunciation, no concealment.
• Ikhfa — partial concealment with ghunnah.
• Idgham (with or without ghunnah) — full merging into the next letter.
• Iqlab — full conversion into a meem before ب.

Ikhfa sits at the middle of this scale: the noon is not gone, but not fully present either.

Ikhfa Shafawi (of the Meem)

There is also an Ikhfa Shafawi ("lip ikhfa") for the silent meem (مْ) when it is followed by the letter ب. Instead of pronouncing the meem clearly, the two lips come together lightly and a ghunnah is sustained for about two counts. Example: tarmīhim bi-hijāratin ( تَرْمِيهِمْ بِحِجَارَةٍ ).

Frequently Asked Questions

What does "concealment" mean in practice?

In practice, the tongue moves toward the makhraj of the letter after the noon (say, toward ت or ق) but does not fully close on it. During this near-approach, the ghunnah continues through the nose. The result is a soft, hidden noon whose sound flows into the next letter without disappearing.

Why are there so many letters of ikhfa?

Because ikhfa is the "middle" rule: it takes all the letters that are neither close enough to the noon for idgham nor distant enough for izhar. Fifteen out of the twenty-eight Arabic letters fall into this middle zone.