TAJWEED FOUNDATIONS • SILENT AND DOUBLED LETTERS

Sukoon & Shaddah in Tajweed

Learn how a Sakin letter closes without a vowel and how Shaddah doubles a consonant, with clear Quran examples, practice steps and an interactive quiz.

Sukoon and Shaddah are small signs with a major effect on Quran pronunciation. This complete lesson explains their meaning, sound, timing and relationship to Ghunnah, Qalqalah, Madd and stopping rules.

Learn the rules Try the quiz

بْSukoonNo vowel

بّShaddahDoubled letter

نّGhunnahTwo counts

READ THE SIGN BEFORE THE SOUND

What Are Sukoon and Shaddah?

Sukoon Means No Vowel

Sukoon (سُكُون) means stillness. Its sign, usually written as ـْ, shows that the letter carries no Fatha, Kasra or Damma. A Sakin consonant joins to the vowel before it and closes the syllable. In قُلْ (qul), the Laam is Sakin: begin with the Damma on Qaaf and close on Laam without adding “a,” “i” or “u.”

Sukoon does not mean that the letter disappears. Its articulation point and qualities must remain clear. The reader reaches the letter, completes it, and moves forward without inventing a vowel.

Shaddah Means Doubling

Shaddah (شَدَّة), written ـّ, means strength or emphasis. It tells us that one written consonant represents two sounds: the first occurrence is Sakin and the second carries the visible vowel. In رَبِّ (rabbi), the doubled Baa is understood as بْ + بِ.

The articulating organs briefly close or hold for the first letter, then release into the vowel of the second. This controlled doubling must be heard without inserting a separate extra vowel.

وَرَتِّلِ الْقُرْآنَ تَرْتِيلًا

“And recite the Quran properly in a measured way.”

Surah Al-Muzzammil 73:4

A CONSONANT WITHOUT A VOWEL

How to Pronounce Sukoon

Start From the Previous Vowel

A Sakin letter cannot begin by itself. Read the Harakah on the preceding letter and travel directly to the articulation point of the Sakin letter. In قُلْ, the sequence is qul, not qu-lu.

Close the Syllable Clearly

Complete the Sakin letter at its correct Makharij. A Laam closes at the tongue tip, a Meem closes at the lips, and a Kaaf forms at the back of the tongue. Do not swallow or weaken the consonant.

Do Not Add a Hidden Harakah

Release cleanly into the next letter. The common error is to say qulu, quli or qula. The Sukoon itself has no vowel and should not create an extra syllable.

Original Sukoon

An original or permanent Sukoon belongs to the word in connected reading and when stopping. The Laam in قُلْ هُوَ remains Sakin while joining the words.

See Al-Ikhlas 112:1

Temporary Sukoon at a Stop

When stopping, the final vowel is normally dropped, making the last letter temporarily Sakin. For example, stopping on الْعَالَمِينَ changes the final Noon from a vowelled sound to a stopped Noon. This can affect Madd and Qalqalah rules.

Learn Waqf rules

Special sound: If a Qalqalah letter ق ط ب ج د carries Sukoon, pronounce its controlled echo without adding a full vowel. See the complete Qalqalah lesson.

ONE SIGN • TWO CONSONANT OCCURRENCES

How to Pronounce Shaddah

First Part: Sakin

The first hidden occurrence has Sukoon. Move from the preceding sound to the letter’s articulation point and form a complete closure or hold. In إِيَّاكَ, the first Yaa of the Shaddah closes the sound after the Madd Yaa.

Second Part: Vowelled

The second occurrence carries the written Fatha, Kasra or Damma. Release the same articulation into that vowel. In إِيَّاكَ, the doubled Yaa is effectively يْ + يَ. The result is a strong, clear yy connection.

Give the Letter Its Full Weight

A Mushaddad letter is stronger and longer than a single consonant because it contains two occurrences. Do not rush through it, but also do not stretch it like a Madd letter. The time depends on completing the consonant, not counting a long vowel.

Noon and Meem Mushaddad

When نّ or مّ has Shaddah, pronounce a clear nasal Ghunnah for two counts. Keep the nasal sound balanced while holding the tongue position for Noon or closing the lips for Meem.

Study Ghunnah and Noon/Meem rules

Remember: Shaddah is not merely “stress.” It encodes two consonant occurrences. Missing it can change the word, its rhythm and sometimes its meaning.

SEPARATE THREE DIFFERENT IDEAS

Sukoon, Shaddah and Madd Compared

Sign or rule	What it represents	How to read it	Example
ـْ Sukoon	One consonant with no vowel	Close the syllable at its articulation point	قُلْ
ـّ Shaddah	Two occurrences of one consonant	Hold the first Sakin part, then release the vowelled part	رَبِّ
Madd	A long vowel	Extend the vowel for the required count	قَالَ
نّ / مّ	Doubled Noon or Meem	Hold the consonant with nasal Ghunnah for two counts	إِنَّا

A Shaddah may interact with other rules. An original Sukoon followed by Shaddah can create Madd Lazim in certain patterns, while stopping can create a temporary Sukoon that changes the available Madd length. Identify each sign first, then apply the rule that governs its sound.

READ FROM QURANIC WORDS

Quran Examples of Sukoon and Shaddah

Sukoon in قُلْ

قُلْ هُوَ اللَّهُ أَحَدٌ

The Laam in قُلْ is Sakin. Close the tongue on Laam and join directly to the next word without saying an extra vowel.

Read Al-Ikhlas 112:1

Sukoon in يَلِدْ

لَمْ يَلِدْ وَلَمْ يُولَدْ

The final Daal in يَلِدْ has original Sukoon and is a Qalqalah letter. Give it a clear controlled bounce when joining, without turning it into da.

Read Al-Ikhlas 112:3

Shaddah in إِيَّاكَ

إِيَّاكَ نَعْبُدُ

The Shaddah on Yaa represents يْ + يَ. Keep the Madd before it distinct, form the doubled Yaa clearly, then release into Fatha.

Read Al-Fatihah 1:5

Shaddah in رَبِّ

الْحَمْدُ لِلَّهِ رَبِّ الْعَالَمِينَ

The doubled Baa is بْ + بِ. Close both lips for the first part, then release the second Baa with Kasra.

Read Al-Fatihah 1:2

Ghunnah in إِنَّا

إِنَّا أَعْطَيْنَاكَ الْكَوْثَرَ

The Noon Mushaddad must be held with Ghunnah for two counts. Keep the nasal sound steady before releasing into Fatha and Alif.

Read Al-Kawthar 108:1

Several Rules Together

أَنْعَمْتَ عَلَيْهِمْ

Notice Sakin Noon, Sakin Meem and the careful transitions between articulation points. Read slowly enough to preserve every consonant without separating the word into unnatural pieces.

Read Al-Fatihah 1:7

KEEP EVERY LETTER COMPLETE

Common Sukoon and Shaddah Mistakes

Adding a Vowel After Sukoon

Avoid: saying qulu for قُلْ. Correct: finish on the Sakin Laam and move immediately to the next sound. Practise very slowly, then increase speed while keeping the closure.

Dropping the Sakin Letter

Avoid: weakening a consonant until it disappears. Correct: reach its Makharij fully. Sukoon removes the vowel, not the consonant.

Reading Shaddah as One Letter

Avoid: reading رَبِّ like رَبِ. Correct: let the lips close for the hidden Sakin Baa before releasing the vowelled Baa.

Turning Shaddah Into Madd

Avoid: stretching a doubled consonant as if it were a long vowel. Correct: maintain the consonant’s articulation; length comes only from completing both occurrences.

Missing Ghunnah on نّ or مّ

Avoid: reading doubled Noon or Meem without nasal resonance. Correct: give the Ghunnah two balanced counts while preserving the correct tongue or lip position.

Over-Bouncing Every Sakin Letter

Avoid: adding Qalqalah to all letters with Sukoon. Correct: the echo belongs only to ق ط ب ج د when Sakin.

TRAIN THE MOUTH STEP BY STEP

Sukoon and Shaddah Practice

Contrast Vowel and Sukoon

بَ / أَبْ · لُ / قُلْ · دِ / يَلِدْ

Make the vowelled letter open into its Harakah, but close the Sakin letter without an extra sound.

Break Down Shaddah

بِّ = بْ + بِ
يَّ = يْ + يَ
نَّ = نْ + نَ

Read the two parts slowly, then join them until the doubling remains clear and natural.

Read Short Quran Phrases

قُلْ هُوَ · رَبِّ الْعَالَمِينَ · إِنَّا أَعْطَيْنَاكَ

Mark every Sukoon and Shaddah before reading. Record yourself and check for added vowels, missing closures and weak doubling.

A reliable daily routine

Choose three Sakin letters from a short Surah and name each articulation point.
Choose three Mushaddad letters and say their hidden two-part form.
Read once very slowly, once at a teaching pace and once in connected recitation.
Listen to a qualified reciter, then compare your closures and timing.
Ask a qualified Quran teacher to correct sounds that recording alone cannot diagnose.

خَيْرُكُمْ مَنْ تَعَلَّمَ الْقُرْآنَ وَعَلَّمَهُ

“The best among you are those who learn the Qur’an and teach it.”

Sahih al-Bukhari 5027

CHECK YOUR UNDERSTANDING

Sukoon and Shaddah Quiz

1. What does Sukoon show?

2. What does Shaddah represent?

3. How is رَبِّ analysed?

4. What is required for نّ and مّ?

5. Which letters receive Qalqalah when Sakin?

Answered 0 of 5 • Correct: 0

CLEAR UP THE DETAILS

Frequently Asked Questions

What is Sukoon in Tajweed?

Sukoon is the sign that shows a consonant has no Fatha, Kasra or Damma. The Sakin letter joins to the preceding vowel and closes the syllable at its correct articulation point.

What is Shaddah in Tajweed?

Shaddah shows that a consonant is doubled. The first occurrence is Sakin and the second carries the written vowel. Both parts must be pronounced as one connected, strengthened sound.

How long should a Shaddah be held?

Hold it long enough to complete the two consonant occurrences. It does not have a fixed Madd count. Noon and Meem with Shaddah are a special case because their Ghunnah is held for two counts.

Does every Sakin letter have Qalqalah?

No. Qalqalah applies only to Qaaf, Taa, Baa, Jeem and Daal when one of them is Sakin. Other Sakin letters keep their normal qualities without an echo.

What happens to the last vowel when stopping?

In normal Waqf, the final short vowel is dropped and the final letter becomes temporarily Sakin. Some endings have additional rules, so learn them in the dedicated stopping lesson.

Is Shaddah the same as emphasis?

No. It may sound strong, but its essential function is consonant doubling. Arabic emphatic qualities such as Tafkheem are separate and depend on the letter itself.

Why is a teacher useful for these rules?

The difference between a complete closure, an added vowel and an overlong hold can be subtle. A qualified teacher can hear and correct the precise articulation in real time.

REMEMBER THE ESSENTIALS

Sukoon and Shaddah at a Glance

ـْSukoonNo vowel; close the syllable clearly.

ـّShaddahFirst Sakin, then vowelled.

نّ مّGhunnahHold the nasal sound for two counts.

Core method: identify the sign, reach the letter’s articulation point, preserve its qualities, and move forward without adding or deleting a sound.