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Lesson 06

Sun & Moon Letters — الحروف الشمسية والقمرية

The definite article 'Al-' is pronounced differently depending on the letter that follows it.

Sun Letters — الحروف الشمسية

When ال precedes a sun letter, the Lam assimilates into that letter (the Lam is not pronounced separately).

ت
ث
د
ذ
ر
ز
س
ش
ص
ض
ط
ظ
ل
ن

Sun letter example

الشَّمْس
ash-Shams
the sun — Lam assimilates into Sheen
النُّور
an-Nūr
the light — Lam assimilates into Noon
الرَّحْمَن
ar-Raḥmān
the Most Merciful — Lam assimilates into Ra

Moon Letters — الحروف القمرية

When ال precedes a moon letter, the Lam is pronounced clearly.

أ
ب
ج
ح
خ
ع
غ
ف
ق
ك
م
و
ه
ي

Moon letter example

الْقَمَر
al-Qamar
the moon — Lam is clearly pronounced
الْكِتَاب
al-Kitāb
the book — Lam is clearly pronounced
الْبَيْت
al-Bayt
the house — Lam is clearly pronounced

Quick Summary

TypeRuleExamplePronunciation
Sun letterLam assimilates into the letterالشَّمْسash-Shams
Moon letterLam is pronounced clearlyالْقَمَرal-Qamar

Remember: 14 sun letters + 14 moon letters = 28 letters (Alif/Hamza counts as moon).

Sun letters are those produced close to the same articulation point as Lam.