Stable Connections in Different System Languages and Their Cognitive-Language Features

. The general theoretical issues of set phrases have yet to be studied at the level of the requirements of modern linguistics, the position of such language units has not been clearly defined, and their boundaries with other phrases remain uncertain. Issues such as the nature of set phrases, their formation, types, and attitude to other linguistic units, especially words and sentences, features of development, still need to be addressed in linguistics. The article's author explains that set phrases from the point of view of the language are the most exciting units that express the spirit of the people. The main features of stable combinations are their nominative and communicative functions. The author also discusses the differences between set phrases and complimentary combinations of words. Particular attention is paid to connecting complex term combinations to stable combinations.