---
title: "The Rule of Full Idgham in Tajweed"
description: "🔗 Idghām: merging a silent letter into the vowelled letter after it so they become one stressed letter of the second type.🔤 Its letters (after Nūn S"
url: "https://iqraairtqi.com/en/blogs/rule-of-full-idgham"
date: "2026-07-30T16:01:29+00:00"
---
# The Rule of Full Idgham in Tajweed
- 🔗 **Idghām**: merging a silent letter into the vowelled letter after it so they become one stressed letter of the second type.
- 🔤 Its letters (after Nūn Sākinah / Tanwīn) are six, collected in the word ***yarmalūn***.
- ✅ **Complete Idghām** (the letter and its attribute, including ghunnah, disappear): with **Lām and Rā’**, and Nūn into Nūn.
- 🔸 **Incomplete Idghām** (the letter disappears, the ghunnah remains): with **Yā’, Wāw and Mīm**.
- ⚠️ No Idghām if the two letters meet within one word — it becomes absolute Iẓhār: *ad-dunyā*, *ṣinwān*.
Idghām in Tajweed: Complete and Incomplete
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From our experience at Iqraa Irtaqii Academy, confusing complete and incomplete Idghām is among the most common student errors. One question settles it: **did the ghunnah remain, or did it go?**
### Definition of Idghām
Idghām linguistically means “insertion.” Technically: pronouncing two letters as one stressed letter of the second type. Here it applies after a silent Nūn or a Tanwīn when followed by one of the letters of *yarmalūn*.
### Complete Idghām
Here the merged letter (the Nūn) disappears entirely, together with its attributes — including its ghunnah. It occurs with:
- **Lām:** *min ladunhu* → “mil-ladunhu.”
- **Rā’:** *min rabbihim* → “mir-rabbihim.”
- And **Nūn into Nūn**: *min ni‘mah* — the ghunnah heard belongs to the second (stressed) Nūn, not the merged one.
### Incomplete Idghām
Here the letter disappears but its attribute (ghunnah) remains. It occurs with **Yā’, Wāw and Mīm**: *man ya‘mal*, *min wāl*, *min māl*. The Nūn is pronounced as a two-count ghunnah, then the sound merges into the following letter.
*Scholarly note:* this “complete / incomplete” division is the well-known one in contemporary tajweed texts; some scholars place Mīm among the complete category. Practice among reciters follows what is stated above.
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### Frequently Asked Questions
**Q: Why is there no Idghām in *ad-dunyā* although a Yā’ follows the Nūn?**A: Because the Nūn and Yā’ are in one word. Idghām requires the two letters to be across two words, so absolute Iẓhār is applied.
**Q: How long is the ghunnah in incomplete Idghām?**A: Two counts.
**Q: Is Nūn into Nūn complete or incomplete?**A: Complete; the silent Nūn’s own ghunnah goes, and the ghunnah heard belongs to the second, stressed Nūn.