Abstract: The object of research in this article is a concept in the aspect of cognitive linguistics. In the middle of the last century, a cognitive field appeared in science, which unites many scientific disciplines. Cognitive science explores the human mind, its thinking abilities, consciousness, memory, etc. Language is used by humans not just to exchange information, it structures knowledge about the world. The concept is a basic concept of cognitive linguistics, combining language, consciousness and culture. The purpose of this article is to study the content of the concept and build its cognitive model using the example of the concept of "will", which will reveal the ways of structuring knowledge about the world, as well as the ways of their evolution.
The methodology of conceptual analysis is based on the study of the meanings of words and expressions that actualize the concept in the language. Etymological analysis makes it possible to identify the central image of the concept, around which conceptual meanings are layered.
The study of the concept of "will" in cognitive linguistics makes a significant contribution to understanding the interaction of language, thinking and culture, as well as to the development of methods for analyzing linguistic and cultural concepts. This study for the first time combines the analysis of the historical development of the concept with its cognitive structures such as metaphors, frames and prototypes, which allows us to create a comprehensive understanding of the concept of "will" in the Russian language. A comprehensive study of the ways and means of lexical expression of the concept of "will" reveals the conceptual content. All of the above determines the relevance of this article. The research results can be used in cognitive linguistics, psychology, and philosophy of language.

Abstract: The article considers the concept from a cognitive-synergetic standpoint. The concept is an open, dissipative, non-linear, fractal structure, the development of which is based on the law of spiral fractality and self-similarity. The concept evolves according to the recursive principle, goes in a circle, returning to the starting point on a new round of evolution. The origin of the concept is based on both external necessity and internal need. By the formation of a concept we mean its transition from the mental area, to the language area, and then to the speech area. The concept arises in consciousness in the form of a virtual image as a result of perceptual perception of reality, and is updated, stored in the language and embodied in speech. The concept strives for perfection, but never reaches it, reaching its peak, it starts the process of evolution again in new conditions.