Scientific and technological progress contributes not only to the rapid development of science and technology, but also makes significant changes to the linguistic model of the world due to the appearance of both individual terms and entire term systems. This causes revision, systematization and codification of the actual terminology and determines the relevance of the research. The modern Ukrainian terminology of land management and land cadastre has become an independent system of terms, formed in the process of long searches and is based on achievements in many areas of knowledge related to land as the main attribute of human existence. This fact makes it possible to speak about it as an open, dynamic and evolving linguistic system. Many modern scientists talk about the need for linguistic, logical and conceptual regulation, codification and standardization of the terminology, correction of the term units in accordance with the norms of the modern Ukrainian literary language. These tasks have determined the purpose of the scientific research, namely the study of the lexical and semantic organization of modern Ukrainian terminology of land management and land cadastre, identifying the features of the manifestation of polysemy, synonymy, antonymy, homonymy, paronymy and hyper-hyponymy in it. The solution of such research problems determines the logic of presentation of the studied material, that corresponds to the academic view of lexical and semantic relations in the modern Ukrainian language, including terminology. Methodology. A comprehensive research methodology, in particular descriptive, comparative and structural-functional methods, the method of analysis and partially the method of quantitative analysis have been used to clarify the features of the manifestation of lexico-semantic phenomena in modern Ukrainian terminology of land management and land cadastre. The use of such methods as comparative analysis, modelling, terminological analysis, forecasting, as well as elements of system analysis and synthesis have been contributed to the solution of certain research problems. Resultsof the study showed that polysemy, synonymy, antonymy, homonymy, paronymy, and hyper-hyponymy in the Ukrainian terminology of land management and cadastre are important systematic categories that provide a comprehensive description of land management and cadastral phenomena, processes, and concepts. Practical implications. Identifying the peculiarities of the manifestation of lexical-semantic phenomena in the modern Ukrainian terminology of land management and land cadastre will contribute to an exact understanding of their essence and, accordingly, the correct use of lexemes and standardization of this terminological system. Value/originality.The scientific research will allow to return to the active vocabulary the native-language terms that had been withdrawn from scientific usage in different periods, to select native-language terms from tracing papers and unsuccessful borrowings, i.e., to implement a set of measures aimed at ensuring that the branch terminological system can adequately represent the system of concepts nominated by terminological lexemes.