Abstract
In this article the required base for linguistic study of the formation of the conceptual and terminological apparatus of the tourism sphere was clarified. The development of the terminology system of the tourism sector materialize in the conditions of continuous accumulation and systematic organization of quantitative and qualitative changes related both to the process of lexical updating of the body of terms, as well as to the processes of clarifying concepts and transforming existing definitions of terms under the influence of external socio-cultural and historical-political factors. In the light of the systemic approach, the formation of the conceptual and terminological apparatus of the tourism sector is considered as a complex multidimensional process. Its development is determined by the action of a combination of intra-scientific and inter-scientific factors, reflects the general linguistic laws of development and the specifics of enrichment of the terminology of the tourism sector in the manifestation of signs relevant for all types of systems: hierarchical and structural, integrity and unity, connection with the social and historical-cultural environment of the functioning of the language in the society of its users. Terminological changes characterize the conceptual-terminological apparatus primarily from the side of quantitative savings, in other words, they reflect the process of increasing thecomposition of terms, which is regarded as an enrichment of the conceptual-terminological apparatus of science. The ongoing study of new tourism terms should show the enriching (or possibly different) nature of these changes.