Idgham: Merging Sounds Correctly

Idgham means "to merge" or "to insert". In Tajweed, it refers to merging a Non-Voweled letter into a Voweled letter so they become one emphasized letter (Mushaddad). The rule applies to Nun Sakinah and Tanween when followed by any of the letters in the word 'Yarmaloon' (ي ر م ل و ن).

The Two Types: With and Without Ghunnah

Not all merges are the same. We divide them into two categories:

• Idgham with Ghunnah (Partial Merge): If the following letter is Ya, Nun, Mim, or Waw (Yanmu), we merge the sound but keep the nasal tone intact for 2 counts. E.g., 'Man-Yaqulu' becomes 'May-yaqulu'.
• Idgham without Ghunnah (Complete Merge): If the letter is Lam (L) or Ra (R), the 'N' sound disappears completely. E.g., 'Min-Rabbi' becomes 'Mir-Rabbi'. This is done quickly without holding the sound.

Why It Matters

Mastering Idgham is what separates a beginner reader from an intermediate one. It creates the characteristic 'flow' of Quranic recitation, removing jerky stops and creating a seamless river of sound.