"DEVONU LUGʻOTIT-TURK" (often called "Devon-i Lugat-it-Turk") is a Turkish dictionary written in the 11th century, compiled by Mahmud al-Qashghari. It is of great importance in the study of the lexical richness of Turkic languages, providing valuable information about polysemous words and their use in different contexts. The article discusses the method of explaining polysemous words in the work "Devonu lugatit turk". Although this dictionary is the most important work of 11th-century lexicography, it is a very important source from this point of view, showing the historical development of Turkic languages.