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The aim of this article is to draw attention to the problems related to lexical marking of dialects. Contemporary dialectology is characterized by reflecting on what has been done and setting new tasks, searching for new methods and approaches. The notion of 'diagnostic dialect markers' is the main one in the modern field of dialect studies. It is related to the typical and original features of a dialect that are obvious to speakers of other dialects or literary languages, on the basis of which the speech can be relatively accurately identified and localized for dialectology and subsequently for the history of the language Most often diagnostic features belong to the category of localisms (features typical of a territorially limited region or a village), but it is also possible to typify a large formation (a group of dialects) through them. In the article the lexical markers of Ukrainian Bulgarian dialect types are presented.
Svitlana Georgiieva (Sat,) studied this question.