This article analyzes the territorial distribution and formation factors of social lexical units in the Uzbek-Tajik dialects of Eastern Surkhandarya. Eastern Surkhandarya is one of the regions where Uzbek- and Tajik-speaking communities have lived in close historical, cultural, economic and linguistic contact for many centuries. As a result of this long-term coexistence, a specific dialectal environment has developed in the region. This environment is reflected not only in phonetic and grammatical features, but also in the lexical layer of local speech. Social lexical units are words and expressions connected with social life, family relations, kinship, professions, traditional occupations, local governance, religious concepts, customs, ceremonies, forms of address and everyday communication. These lexical units are important because they reflect the social structure, cultural memory, moral values and historical experience of the local population.
Sayyora Eshonqulovna Saidova (Mon,) studied this question.