The field of philosophy of language is full of controversy. It is worth noting that the philosophy of language should not be confused with the philosophy of linguistics, as it is nothing more than its epistemology. The purpose of this paper is to provide a more general view of the language and culture of Azerbaijan with the use of the epistemological approach. As a tool for philosophical reflection methods including critical analysis of language and new trends in linguistics were used. In addition, such scientific methods as: deductive method, analysis, synthesis, modelling were involved. The literature search was conducted in several databases, including Google Scholar, Scopus search, and Web of Science. The specific used keywords were philosophy of language, linguistic culture, concept, cognitive linguistics, vocabulary, and definitions. The timeframe of the articles went beyond 2018-2021 and include only the latest data. The results of the work showed that the structure of the Azerbaijani language, the worldview imposed by the culture, the properties of the language, especially its extraordinary flexibility, cannot remain outside of philosophical argumentation. The vocabulary of the Azerbaijani language is traditionally studied within the framework of a text, as well as in the process of learning language and speech rules. At the stage of higher education, students are provided with detailed information about lexical-grammatical, structural-semantic, and, less often, etymological features of the vocabulary. At the same time, students of higher education cover this process in a somewhat broader direction. A new powerful branch of lexicology that has entered the scientific world of Azerbaijani linguistics is cognitive lexicology. The article describes new linguistic possibilities of studying the vocabulary of the modern Azerbaijani language in the semantic-cognitive and linguistic-cultural aspects, a number of unique national and cultural features characteristic of words and phrases of the conceptual space, describes the philosophical regularities of verbalisation, how many associative images are modelled in Azerbaijanis worldview. The conclusions determine that the concept of culture is expressed in words, fragments that reflect the linguistic landscape of the world. In research, the words and phrases are studied as a cognitive procedure.