Philological information on "Azerbaijani" was prepared by the translation studies division of Dijital Tercüme.
 
According to philologists, Azerbaijani has many different names, including Azeri Turkish, Azerbaijan Turkish or the Azerbaijan Language. It belongs to the Oghuz branch of the Turkic Languages family and is very similar to the Turkish spoken in modern Turkey. Based on its main features, Azerbaijani is one of the Oghuz dialects of the Turkic Languages. It has 4 dialects. These are: Eastern dialect (Quba, Shamakhi, Baku, Mughan and Lankaran dialects), Western dialect (Qazax, Karabakh, Ganja dialects), Northern dialect (Sheki (Nukha) and Zaqatala-Qakh dialects), and Southern dialect (Nakhchivan, Ordubad, Yerevan dialects).
 
It is the official language of the Republic of Azerbaijan. Republic of Azerbaijan was established in Southern Caucasia, after the dissolution of the Soviet Union. Its neighbors are Armenia in the west, Georgia in the northwest, Iran in the south. The eastern border is marked by the Caspian Sea. It is partly in Europe and partly in Asia. Its capital is Baku.
 
Azerbaijan officially has used the Latin alphabet since 1991, yet due to long years of Soviet influence, the Cyrillic alphabet is still being used commonly. Even though the two alphabets are similar in their main features and complimentary in how they sound, they are written differently. Azerbaijani is spoken by 8 million people within the borders of Azerbaijan, and by 15-20 million people in Iran. In addition, it is spoken in the cities of Kars, Ardahan, Ağrı, Sivas and Van in Turkey.
 
According to indefinite theories, Turkish people's adoption of Azerbaijan as a homeland dates back to BC. Due to its geopolitical status, it has consistently been under invasion and subjected to the control of other states. The Atropates Kingdom emerged in the region first. In time, this name was called Azurbeycan by the Sassanids and Azerbaigan by Assyrians. Afterwards it was controlled by Seleucids, Armenians, Romans, and Sassanids. After 4th and 5th centuries A.D., Turks started to settle in the region. Azerbaijan's decisive entry into the Seljuk dominion was during the reign of Sultan Alp Arslan. During this era, Turkification and Azerbaijan's conversion to Islam gained momentum with the migration of Oghuz Turks. After the Mongol invasion, it entered into the Ilkhante dominion and for a while was under the rule of the Golden Horde. In the 14th century it was under Kara Koyunlu and Ak Koyunlu rule. The first Ottoman campaigns to Azerbaijan started from the 16th century onwards. The chaos in the region continued until until 1920 with the invasion by the Red Army of the Soviet regime. On December 5, 1936 a part of its land was given to Armenians and Georgians. Therefore, in Azerbaijani lands in the Caucasus, republics tied to Russia were established: Georgia, Armenia, and Azerbaijan. On August 30, 1991, with the fall of the USSR, it re-established its independence.
 
Due to a high level of education, Baku's position as a cultural and educational center, lower tuition costs compared to other foreign countries, and similarities in culture, Azerbaijan is a country preferred by Turkish students. Students study one year of Azerbaijani or Russian during their time in Azerbaijan. Therefore, as preparation for those who wish to get university education in Azerbaijan, learning Azerbaijani is important. In addition to this, Azerbaijan is one of the most notable petroleum producing countries in the world. Natural gas is the most important source of revenue after petroleum. Because there is busy import traffic within our country in these areas, especially commercial relations in the energy sector, Azerbaijani translation is very important. Its potential for tourism, development processes in banking and insurance sectors, and membership of the United Nations, OSCE, and IMF, Azerbaijani grows more important each passing day.
 
In the Turkic languages, Azerbaijani, is closer to Turkish spoken in Turkey. Only a letter which is called a closed "e", which sounds between "e" and "i" sounds, has a pronunciation that is a little bit more closed than the "e" in Turkey Turkish. It is the only modern written Turkish language that contains this closed "e" sound, which existed back in the Göktürk era. The differences between Azerbaijan and Ottoman Turkish mostly lie in the accents, which are the "b" - "m" sounds in the beginning of the words, the "e" - "i" sounds in the first syllables,the  "t" - "d" sounds in the beginning of the words, the accusative and some verb conjugations.
During times when an Arabic Turkish alphabet was used, works written in Azerbaijan and Ottoman Turkish had great similarities. Azerbaijani Turkish or Azerbaijani, continued its own development after the 17th century. After Russian dominance, due to the separation from the Ottoman region and the newly established state structure, Azerbaijani attained official written language status. Azerbaijanis living in the Azerbaijani region of Iran and other places still use an Arabic alphabet today.