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Arabic alphabet

Alphabet of the Arabic language

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Letters

The basic Arabic alphabet contains 28 letters, each of which behaves either as a full-fledged letter or as a diacritic. Forms using the Arabic script to write other languages added and removed letters: for example ⟨پ⟩ is often used to represent in adaptations of the Arabic script.

Many letters look similar but are distinguished from one another by dots (ʾiʿjām) above or below their central part (rasm). These dots are an integral part of a letter, since they distinguish between letters that represent different sounds. For example, the Arabic letters ب b, ت t, and ث th have the same basic shape, but with one dot added below, two dots added above, and three dots added above respectively. The letter ن n also has the same form in initial and medial forms, with one dot added above, though it is somewhat different in its isolated and final forms. Historically, they were often omitted, in a writing style called rasm.

Both printed and written Arabic are cursive, with most letters within a word directly joined to adjacent letters.

Letter forms

The Arabic alphabet is always cursive and letters vary in shape depending on their position within a word. Letters can exhibit up to four distinct forms corresponding to an initial, medial (middle), final, or isolated position (IMFI). While some letters show considerable variations, others remain almost identical across all four positions. Generally, letters in the same word are linked together on both sides by short horizontal lines, but six letters (و ,ز ,ر ,ذ ,د ,ا) can only be linked to their preceding letter. In addition, some letter combinations are written as ligatures (special shapes), notably lām-alif لا, which is the only mandatory ligature (the unligated combination ل‍ا is considered difficult to read).

Table of basic letters

Hamza forms

The hamza (glottal stop) can be written either alone, as if it were a letter, or with a carrier, when it becomes a diacritic. Hamzat al-madd (آ) indicates a long + sound as in آسف ʾāsif "sorry", while the other hamzas indicate the glottal stop in different positions of the word as in مسؤول masʾūl and سائل sāʾil , the writing of the hamza is based on a set of rules, For the writing rule of each form, see Hamza § Arabic "seat" rules.

Modified letters

The following are not individual letters, but rather different contextual variants of some of the Arabic letters.

Long vowels

In the fully vocalized Arabic text found in texts such as the Quran, a long ā following a consonant other than a hamza is written with a short a sign (fatḥah) on the consonant plus an ʾalif after it; long ī is written as a sign for short i (kasrah) plus a yāʾ; and long ū as a sign for short u (ḍammah) plus a wāw. Briefly, ᵃa = ā; ⁱy = ī; and ᵘw = ū. Long ā following a hamza may be represented by an ʾalif maddah or by a free hamza followed by an ʾalif. Arabic never allows two consecutive ʾalifs.

The table below shows vowels placed above or below a dotted circle replacing a primary consonant letter or a shaddah sign. For clarity in the table, the primary letters on the left used to mark these long vowels are shown only in their isolated form. Most consonants do connect to the left with ʾalif, wāw and yāʾ written then with their medial or final form. Additionally, the letter yāʾ in the last row may connect to the letter on its left, and then will use a medial or initial form. Use the table of primary letters to look at their actual representative glyph and joining types.

In unvocalized text (one in which the short vowels are not marked), the long vowels are represented by the vowel in question: ʾalif mamdūdah/maqṣūrah, wāw, or yāʾ. Long vowels written in the middle of a word of unvocalized text are treated like consonants with a sukūn (see below) in a text that has full diacritics. Here also, the table shows long vowel letters only in isolated form for clarity.

Combinations وا and يا are always pronounced wā and yā respectively. The exception is the suffix ـوا۟ in verb endings where ʾalif is silent, resulting in ū or aw. In addition, when transliterating names and loanwords, Arabic language speakers write out most or all the vowels as long (ā with ا ʾalif, ē and ī with ي yaʾ, and ō and ū with و wāw), meaning it approaches a true alphabet.

Diphthongs

The diphthongs حروف اللين ḥurūfu l-līn and are represented in vocalized text as follows:

A final yaʾ is usually written at the end of words for nisba (اَلنِّسْبَة nisbah) which is a common suffix to form adjectives of relation or pertinence. The suffix is ـِيّ -iyy for masculine (ـِيَّة -iyya(t)- for feminine); for example اِشْتِرَاكِيّ ištirākiyy "socialist", it is also used for a singulative ending that applies to human or other sentient beings as in جندي jundiyy "a soldier". However nowadays this final yaʾ is mostly pronounced with a long yaʾ (yāʾ mamdūdah) -ī as in اِشْتِرَاكِي ištirākī instead of اِشْتِرَاكِيّ ištirākiyy . A similar mistake happens at the end of some third person plural verbs as in جَرَوْا jaraw "they ran" which is pronounced nowadays as جَرُوا jarū .

Ligatures

The use of ligature in Arabic is common. There is one compulsory ligature, that for lām ل + alif ا, which exists in two forms. All other ligatures, of which there are many, are optional.

A more complex ligature that combines as many as seven distinct components is commonly used to represent the word Allāh الله. The only ligature within the primary range of Arabic script in Unicode (U+06xx) is lām + alif. This is the only one compulsory for fonts and word-processing. Other ranges are for compatibility to older standards and contain other ligatures, which are optional.

Note: Unicode also has in its Presentation Form B FExx range a code for this ligature. If your browser and font are configured correctly for Arabic, the ligature displayed above should be identical to this one, U+FEFB

Alphabetical order

There are two main collating sequences ('alphabetical orderings') for the Arabic alphabet: Hija'i, and Abjadi.

The Hija'i order (هِجَائِيّ Hijāʾiyy ) is the more common order and it is used when sorting lists of words and names, such as in phonebooks, classroom lists, and dictionaries.

The original Abjadi order (أَبْجَدِيّ ʾabjadiyy ) derives from that used by the Phoenician alphabet and therefore resembles the sequence of letters in Hebrew and Greek. Letters are also assigned numerical values (abjad numerals) for purposes of numerology, as is done in Hebrew gematria and Greek isopsephy. Letters in the Hija'i order are not considered to have numerical values.

Hijaʼi

Modern dictionaries and reference books use the hijāʾī alphabetical order instead of the Abjadi alphabetical order, in which letters are arranged mainly by similarity of shape. The hijaʼi order is never used for numerals.

A different hijaʼi order was used in the Maghreb but is now considered obsolete. The sequence is:

The al-iklīl order, now obsolete, also arranged letters mainly by shape. It was first used in the 10th-century work Kitāb al-Iklīl. The sequence is:

Abjadi

The abjadi order is the usual Arabic order in dictionaries and reference books of the late 1st millennium to the early 2nd millennium. However, this Arabic abjadi order is not a simple correspondence with the earlier north Semitic alphabetic order, as the latter has a position corresponding to the Aramaic letter samek 𐡎, which has no cognate letter in the Arabic alphabet historically because Proto-Semitic fricatives *š (represented by šin 𐡔 in Aramaic) and *s (represented by samek 𐡎 in Aramaic) had merged into Arabic s س, while Proto-Semitic *ś became Arabic š ش.

The loss of sameḵ was compensated for:

  • In the Mashriqi abjad sequence, by splitting the letter šīn 𐡔 into two independent Arabic letters: ش shīn and س sīn, with the latter taking the place of sameḵ 𐡎;
  • And in the Maghrebi abjad sequence, by splitting the letter ṣāḏē 𐡑 into two independent Arabic letters: ض ḍad and ص ṣad, with the latter taking the place of sameḵ 𐡎.

The six other letters that do not correspond to any north Semitic letter are placed at the end.

This is commonly vocalized as follows:

ʾabjad hawwaz ḥuṭṭī kalaman saʿfaṣ qarashat thakhadh ḍaẓagh.

Another vocalization is:

ʾabujadin hawazin ḥuṭiya kalman saʿfaṣ qurishat thakhudh ḍaẓugh

This can be vocalized as:

ʾabujadin hawazin ḥuṭiya kalman ṣaʿfaḍ qurisat thakhudh ẓaghush

Notes:

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