This article explores Ukrainian vocabulary related to structures, as documented in Russian-Ukrainian dictionaries published between 1917 and 1933, including the Moscow–Ukrainian Dictionary (1918) by V. Dubrovskyi, the Russian–Ukrainian Dictionary (1918) by S. Ivanytskyi and F. Shumlyanskyi, and the Russian–Ukrainian Dictionary (1924–1933) edited by A. Krymskyi and S. Efremov. The study was carried out by using digital lexicographic systems developed from printed dictionaries, as well as a custom database of nouns. Overall, the analysed material comprises more than fifteen hundred lexical units.
The paper provides a comprehensive analysis of the vocabulary recorded in the above-mentioned dictionaries within the framework of the main identified groups of structures, namely: (1) structures intended for performing certain types of work, producing goods, or providing specific services; (2) residential buildings and their parts; (3) utility structures; and (4) engineering structures. It examines the semantic, word-formation, and stylistic features of these terms across different lexicographic sources from the period, comparing them with their modern equivalents.
Specific examples are used to illustrate the process of actualization of certain lexemes and the peculiarities of their use in language and speech. It has been established that almost all the analysed groups of structures contain lexemes that have been re-actualized, some of which have returned to active use with new or slightly modified meanings.

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