In this article is discussed the features of the linguistic expression of the concepts of good and evil. Among other things, the study of the content components of good and bad lexemes in dictionaries should be associated with their implementation in different discourses, this was attributed to the analysis of scientists' research. It is shown that the Uzbek mentality connects the opposition of good and evil with a clear moral paradigm, which is not only reflected in the sacred hadiths of Islam, but also historically connected.