Arabic Diacritics Guide: Harakat, Tashkeel & When to Use Them

Arabic diacritics (known as harakat |حركات or tashkeel |تشكيل) are small marks placed above or below Arabic letters to indicate vowel sounds. Unlike alphabets like English where vowels are full letters, Arabic typically omits most vowel information in everyday writing — experienced readers can interpret words from context. But for learners, Quranic text, children's books, and formal recitation, diacritics are essential. This complete guide covers every Arabic diacritic mark and how to type them.

The 8 Core Arabic Diacritics

Mark	Name (Arabic)	Name (English)	Sound	Example
فَ	فَتْحة	Fatha	Short "a" — like "cat"	كَتَبَ (kataba)
فِ	كَسْرة	Kasra	Short "i" — like "sit"	كِتَاب (kitāb)
فُ	ضَمّة	Damma	Short "u" — like "put"	كُتُب (kutub)
فْ	سُكُون	Sukoon	No vowel — consonant only	مَكْتَب (maktab)
فّ	شَدّة	Shadda	Doubles the consonant	مُدَرِّس (mudarris)
فً	تَنْوِين فَتْح	Tanwin Fath	"an" ending — indefinite accusative	كِتَابًا
فٍ	تَنْوِين كَسْر	Tanwin Kasr	"in" ending — indefinite genitive	كِتَابٍ
فٌ	تَنْوِين ضَمّ	Tanwin Damm	"un" ending — indefinite nominative	كِتَابٌ

When Do Arabic Texts Use Diacritics?

Most everyday Arabic text is written WITHOUT diacritics. Context allows proficient readers to determine the correct vowels. However, diacritics are required in:

• The Holy Quran: Fully vowelled to ensure correct recitation. This is the most important context.
• Children's textbooks: All school books for early learners include full diacritics.
• Arabic language learning materials: Textbooks and dictionaries add diacritics to aid pronunciation.
• Poetry and classical literature: To preserve meter and prevent misinterpretation.
• Newspapers for disambiguation: Some newspapers add diacritics to unusual words that could be misread.
• Names and proper nouns: To clarify pronunciation of unfamiliar names.

Understanding Tanwin — The Indefinite Article of Arabic

Arabic has no indefinite article ("a/an" in English). Instead, indefinite nouns are marked by Tanwin (نون ساكنة — a nun sound added to the end). The three types of Tanwin indicate grammatical case:

Tanwin Type	Grammatical Case	Example	Meaning
Tanwin Damm (ٌ)	Nominative (subject)	وَلَدٌ	A boy (as subject)
Tanwin Fath (ً)	Accusative (object)	وَلَدًا	A boy (as object)
Tanwin Kasr (ٍ)	Genitive (possessive)	وَلَدٍ	A boy's / of a boy

Shadda — The Gemination Mark

Shadda (ّ) indicates that a consonant is doubled — it is held for twice as long during pronunciation. This is crucial because it changes word meaning:

• دَرَسَ (darasa) = "he studied" (no shadda on Ra)
• دَرَّسَ (darrasa) = "he taught" (shadda on Ra — causative form)

Shadda can be combined with vowel marks:

• فَّ = Shadda + Fatha
• فِّ = Shadda + Kasra
• فُّ = Shadda + Damma

How to Type Arabic Diacritics

Using Our Online Keyboard

The Arabic Typing Keyboard has a dedicated Harakat tab with all 8 diacritics plus the Shadda combinations. To add diacritics:

1. Type the base word first (all consonants)
2. Position cursor after the letter you want to vowel
3. Click the Harakat tab
4. Click the desired diacritic to insert it

Physical Keyboard Harakat Shortcuts (Arabic 101 Layout)

Shortcut	Inserts
Shift + Q	Fatha (فَ)
Shift + W	Tanwin Fath (فً)
Shift + E	Damma (فُ)
Shift + R	Tanwin Damm (فٌ)
Shift + A	Kasra (فِ)
Shift + S	Tanwin Kasr (فٍ)
Shift + X	Sukoon (فْ)
Shift + ~	Shadda (فّ)