This research project delves into the complex relationship between denotational and connotational meanings within synonymous lexical units, with a specific focus on the Russian language. It aims to provide a comprehensive analysis of how these two semantic layers interact and influence the overall understanding and interpretation of words. The study will employ a variety of methodological approaches, including corpus linguistics, semantic feature analysis, and comparative lexical analysis. It will consider not only the dictionary definitions of synonyms (denotation) but also the emotional, cultural, and contextual nuances that contribute to their connotational meanings. Furthermore, the project will examine the impact of these meaning components on text comprehension, stylistic choices, and the potential for ambiguity or misunderstanding in communication. The primary goal is to contribute to a deeper understanding of the subtle ways in which language conveys meaning and how different aspects of meaning are interconnected, providing a valuable resource for students, linguists, and anyone interested in the intricacies of the Russian language.