Several Arabic letters share the same base shape but differ by the number and position of dots. Confusing these letters changes the meaning of Quran verses — making this one of the most important lessons in Noorani Qaida.

Groups of Similar Letters

ب ت ث

Group 1 — Ba, Ta, Tha

Same base shape (a small curve)

›ب — ONE dot BELOW the letter
›ت — TWO dots ABOVE the letter
›ث — THREE dots ABOVE the letter

Tip: Count the dots! Below = Ba. Two above = Ta. Three above = Tha.

بَيْتٌ — Baytun (house) — Ba تَوْبَةٌ — Tawbatun (repentance) — Ta ثَوَابٌ — Thawaabun (reward) — Tha

ج ح خ

Group 2 — Jim, Ha, Kha

Same curved base shape

›ج — ONE dot INSIDE/BELOW
›ح — NO dots at all
›خ — ONE dot ABOVE

Tip: No dot = Ha (soft breath). Dot inside = Jim. Dot above = Kha (guttural).

جَنَّةٌ — Jannatun (paradise) — Jim حَمْدٌ — Hamdun (praise) — Ha خَيْرٌ — Khayrun (good) — Kha

د ذ

Group 3 — Dal, Dhal

Same angular shape

›د — NO dot
›ذ — ONE dot ABOVE

Tip: The dot turns the d-sound into a voiced th-sound (like "the").

دِينٌ — Deenun (religion) — Dal ذِكْرٌ — Dhikrun (remembrance) — Dhal

ر ز

Group 4 — Ra, Zay

Same downward curve

›ر — NO dot
›ز — ONE dot ABOVE

Tip: The dot turns r into z.

رَبٌّ — Rabbun (Lord) — Ra زَكَاةٌ — Zakaatun (charity) — Zay

س ش

Group 5 — Sin, Shin

Three-tooth comb shape

›س — NO dots
›ش — THREE dots ABOVE

Tip: Three dots = sh sound. No dots = s sound.

سَلَامٌ — Salaamun (peace) — Sin شَمْسٌ — Shamsun (sun) — Shin

ص ض

Group 6 — Sad, Dad

Oval with tail shape

›ص — NO dot
›ض — ONE dot ABOVE

Tip: Both are heavy letters. Sad = heavy s. Dad = heaviest letter in Arabic.

صِرَاطٌ — Siraatun (path) — Sad ضَوْءٌ — Daw-un (light) — Dad

ط ظ

Group 7 — Ta (heavy), Dha

Loop with upright stroke

›ط — NO dot
›ظ — ONE dot ABOVE

Tip: Both heavy. No dot = heavy t. Dot above = heavy th (voiced).

طَرِيقٌ — Tareequn (path) — Ta heavy ظُلْمٌ — Dhulmun (oppression) — Dha

ع غ

Group 8 — Ain, Ghain

Eye-like shape with tail

›ع — NO dot
›غ — ONE dot ABOVE

Tip: Ain = deep voiced throat sound. Ghain = voiced guttural (like soft gargle).

عِلْمٌ — Ilmun (knowledge) — Ain غَفُورٌ — Ghafoorun (forgiving) — Ghain

ف ق

Group 9 — Fa, Qaf

Round head with tail

›ف — ONE dot ABOVE, smaller head
›ق — TWO dots ABOVE, deeper round head

Tip: Fa = one dot, light f-sound (upper teeth + lower lip). Qaf = two dots, deep back-of-throat sound.

فَجْرٌ — Fajrun (dawn) — Fa قَلْبٌ — Qalbun (heart) — Qaf

Critical Warning

Confusing similar letters in Quran recitation is a major error. For example: reading ض as ظ or ص as س changes the meaning of the verse. Always verify with your teacher until each letter is fully mastered.

Compound Letters — Joining Arabic Letters

Next Chapter

Short Vowels — Harakat (Fatha, Kasra, Damma)

القاعدة النورانية

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Similar Letters — Avoiding Confusion