The article examines the semantic nature of the word “Sufi”, widely used in the history of language. The based linguistic materials are differentiated by scientific data. The analysis looks at terminological, religious, linguistic concepts of the word, its semantic use and changes in historical periods, lexical and semantic concepts and functions of our language. It is also the foundations of the formation of the word Sufi in accordance with the norms of public speech, its entry into circulation, the period of its activity, etc. The definition of the word as a character, the conclusions of those who have completely sacrificed themselves to religion and accepted it as a way of life, are well presented in the historical data. Periodic and systematic lines of work are consistently offered. The life principles of those who have glorified and promoted Sufism, paved a particular path, and formed a school of Sufism are also presented with compelling facts. The information that these famous schools had their own principles, ways, and structure is based on the opinions and conclusions of scholars. In fact, if the cognitive characteristics of the worshipper, worship, action, and piety, which have special significance in human life, are subjected to special analysis, the method, purpose, and mission of those who follow this path are considered very important. At the same time, such actions of those who make Sufism their pillar, aim at it, and set as a principle to live only by love to the Creator alone, inevitably requires special study. Therefore, the importance of this work is reflected here, and special attention is paid to the etymological study of the history and semantic nature of the word. The first meaning of the word Sufi, the second name, the official meaning, has been scientifically established. The fact that from the first appearance of the word such issues as submission to the Creator's will, directing all thoughts and actions to the Creator, have influenced the history of the word's origin cannot be overlooked. The author reveals the basic principles and pillars of the word, its concepts, and therefore its status in worship. In a word, the official nature of the word Sufi was defined, which determined the role and place in the formation of values in the spiritual cognition of the peoples of the Kazakh steppes.