Kazakh is a Turkic language which belongs to the Kipchak (or Western Turkic) branch of the Turkic languages, closely related to Nogai

Nogai language

Nogai , is a Turkic language spoken in southwestern Russia. Three distinct dialects are recognized: Qara-Nogay , spoken in Dagestan; Nogai Proper, in Stavropol; and Aqnogay , by the Kuban River, its tributaries in Karachay-Cherkessia, and in the Mineralnye Vody District...

 and Karakalpak

Karakalpak language

Karakalpak is a Turkic language mainly spoken by Karakalpaks in Karakalpakstan , as well as by Bashkirs and Nogay. Ethnic Karakalpaks who live in the viloyatlar of Uzbekistan tend to speak local Uzbek dialects.-Classification:...

.

Kazakh is an agglutinative language

Agglutinative language

An agglutinative language is a language that uses agglutination extensively: most words are formed by joining morphemes together. This term was introduced by Wilhelm von Humboldt in 1836 to classify languages from a morphological point of view...

, and it employs vowel harmony

Vowel harmony

Vowel harmony is a type of long-distance assimilatory phonological process involving vowels that occurs in some languages. In languages with vowel harmony, there are constraints on which vowels may be found near each other....

.
The Kazakh language has its speakers (mainly Kazakhs

Kazakhs

The Kazakhs are a Turkic people of the northern parts of Central Asia ....

) spread over a vast territory from the Tian Shan mountains

Tian Shan

The Tian Shan , also spelled Tien Shan, is a large mountain system located in Central Asia. The highest peak in the Tian Shan is Victory Peak , ....

 to the western shore of Caspian Sea

Caspian Sea

The Caspian Sea is the largest enclosed body of water on Earth by area, variously classed as the world's largest lake or a full-fledged sea. The sea has a surface area of and a volume of...

. Kazakh is the official state language of Kazakhstan

Kazakhstan

Kazakhstan , officially the Republic of Kazakhstan, is a transcontinental country in Central Asia and Eastern Europe. Ranked as the ninth largest country in the world, it is also the world's largest landlocked country; its territory of is greater than Western Europe...

, in which nearly 10 million speakers are reported to live (based on the CIA World Factbook's estimates for population and percentage of Kazakh speakers) .