The Arabic alphabet, or the Arabic abjad, is the Arabic script as specifically codified for writing the Arabic language. It is written from right-to-left in a cursive style, and includes 28 letters, of which most have contextual letterforms. Unlike the modern Latin alphabet, the script has no concept of letter case. The Arabic alphabet is considered an abjad, with only consonants required to be written; due to its optional use of diacritics to notate vowels, it is considered an impure abjad.
The Hebrew alphabet, known variously by scholars as the Ktav Ashuri, Jewish script, square script and block script, is an abjad script used in the writing of the Hebrew language and other Jewish languages, most notably Yiddish, Ladino, Judeo-Arabic, and Judeo-Persian. In modern Hebrew, vowels are increasingly introduced. It is also used informally in Israel to write Levantine Arabic, especially among Druze. It is an offshoot of the Imperial Aramaic alphabet, which flourished during the Achaemenid Empire and which itself derives from the Phoenician alphabet.
In cryptography, a substitution cipher is a method of encrypting in which units of plaintext are replaced with the ciphertext, in a defined manner, with the help of a key; the "units" may be single letters, pairs of letters, triplets of letters, mixtures of the above, and so forth. The receiver deciphers the text by performing the inverse substitution process to extract the original message.
Chechen is a Northeast Caucasian language spoken by approximately 1.8 million people, mostly in the Chechen Republic and by members of the Chechen diaspora throughout Russia and the rest of Europe, Jordan, Austria, Turkey, Azerbaijan, Ukraine, Central Asia and Georgia.
The Russian alphabet is the script used to write the Russian language. It is derived from the Cyrillic script, which was modified in the 9th century to capture accurately the phonology of the first Slavic literary language, Old Slavonic. Initially an old variant of the Bulgarian alphabet, it was used in Kievan Rus' from the 10th century onward to write what would become the modern Russian language.
Alphabetical order is a system whereby character strings are placed in order based on the position of the characters in the conventional ordering of an alphabet. It is one of the methods of collation. In mathematics, a lexicographical order is the generalization of the alphabetical order to other data types, such as sequences of numbers or other ordered mathematical objects.
In cryptography, the ADFGVX cipher was a manually applied field cipher used by the Imperial German Army during World War I. It was used to transmit messages secretly using wireless telegraphy. ADFGVX was in fact an extension of an earlier cipher called ADFGX which was first used on 1 March 1918 on the German Western Front. ADFGVX was applied from 1 June 1918 on both the Western Front and Eastern Front.
The Persian alphabet, also known as the Perso-Arabic script, is the right-to-left alphabet used for the Persian language. It is a variation of the Arabic script with five additional letters: پ چ ژ گ, in addition to the obsolete ڤ that was used for the sound. This letter is no longer used in Persian, as the -sound changed to, e.g. archaic زڤان > زبان 'language'.
Kurdish is written using either of two alphabets: the Latin-based Bedirxan or Hawar alphabet, introduced by Celadet Alî Bedirxan in 1932 and popularized through the Hawar magazine, and the Kurdo-Arabic alphabet. The Kurdistan Region has agreed upon a standard for Central Kurdish, implemented in Unicode for computation purposes. The Hawar alphabet is primarily used in Syria and Turkey, while the Kurdo-Arabic alphabet is commonly used in Iraq and Iran. The Hawar alphabet is also used to some extent in Iraqi Kurdistan. Two additional alphabets, based on the Armenian and Cyrillic scripts, were once used by Kurds in the Soviet Union, most notably in the Armenian Soviet Socialist Republic and Kurdistansky Uyezd.
Windows-1256 is a code page used under Microsoft Windows to write Arabic and other languages that use Arabic script, such as Persian and Urdu.
The Turkmen alphabet refers to variants of the Latin alphabet, Cyrillic alphabet, or Arabic alphabet used for writing of the Turkmen language.
The Arabic alphabet is thought to be traced back to a Nabataean variation of the Aramaic alphabet, known as Nabataean Aramaic. This script itself descends from the Phoenician alphabet, an ancestral alphabet that additionally gave rise to the Hebrew and Greek alphabets. Nabataean Aramaic evolved into Nabataean Arabic, so-called because it represents a transitional phase between the known recognizably Aramaic and Arabic scripts. Nabataean Arabic was succeeded by Paleo-Arabic, termed as such because it dates to the pre-Islamic period in the fifth and sixth centuries CE, but is also recognizable in light of the Arabic script as expressed during the Islamic era. Finally, the standardization of the Arabic alphabet during the Islamic era led to the emergence of classical Arabic. The phase of the Arabic alphabet today is known as Modern Standard Arabic, although classical Arabic survives as a "high" variety as part of a diglossia.
The Ottoman Turkish alphabet is a version of the Perso-Arabic script used to write Ottoman Turkish until 1928, when it was replaced by the Latin-based modern Turkish alphabet.
The Arabic script, also called the Perso-Arabic script is the writing system used for Arabic and several other languages of Asia and Africa. It is the second-most widely used alphabetic writing system in the world, the second-most widely used writing system in the world by number of countries using it, and the third-most by number of users.
The Urdu alphabet is the right-to-left alphabet used for writing Urdu. It is a modification of the Persian alphabet, which itself is derived from the Arabic script. It has co-official status in the republics of Pakistan, India and South Africa. The Urdu alphabet has up to 39 or 40 distinct letters with no distinct letter cases and is typically written in the calligraphic Nastaʿlīq script, whereas Arabic is more commonly written in the Naskh style.
Letter frequency is the number of times letters of the alphabet appear on average in written language. Letter frequency analysis dates back to the Arab mathematician Al-Kindi, who formally developed the method to break ciphers. Letter frequency analysis gained importance in Europe with the development of movable type in AD 1450, wherein one must estimate the amount of type required for each letterform. Linguists use letter frequency analysis as a rudimentary technique for language identification, where it is particularly effective as an indication of whether an unknown writing system is alphabetic, syllabic, or ideographic.
The modern Malay and Indonesian alphabet consists of the 26 letters of the ISO basic Latin alphabet. It is the more common of the two alphabets used today to write the Malay language, the other being Jawi. The Latin Malay alphabet is the official Malay script in Indonesia, Malaysia and Singapore, while it is co-official with Jawi in Brunei.
Crimean Tatar is written in both Latin and Cyrillic. Historically, the Persian script was also used.
The Parkari Koli language is an Indo-Aryan language mainly spoken in the province of Sindh, Pakistan. It is spoken in the southeast tip bordering India, in the Tharparkar District, Nagarparkar. Most of the lower Thar Desert, west as far as Indus River, bordered north and west by Hyderabad, to south and west of Badin.
ʻAfīf al-Dīn ʻAlī ibn ʻAdlān al-Mawsilī, born in Mosul, was an Arab cryptologist, linguist and poet who is known for his early contributions to cryptanalysis, to which he dedicated at least two books. He was also involved in literature and poetry, and taught on the Arabic language at the Al-Salihiyya Mosque of Cairo.
