This article examines the independence of lexical semantics and phraseological stability within language systems, focusing on how words and fixed expressions function both separately and interactively. Lexical semantics studies the meaning of individual words, while phraseological stability concerns fixed combinations such as idioms, collocations, and set expressions that often carry meanings not directly derived from their components. The paper highlights that although these two aspects are interconnected, they maintain a certain degree of independence in linguistic structure and usage. Furthermore, the study explores how phraseological units preserve their stability across contexts, even when individual lexical meanings evolve over time. It also discusses the role of cultural, historical, and cognitive factors in shaping phraseological expressions, demonstrating that stable phrases often reflect deeper semantic layers beyond simple word meanings. The findings emphasize the importance of analyzing both lexical and phraseological levels for a comprehensive understanding of language systems. Original journal page: https://cajii.com/index.php/cajii/article/view/15

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