About the book: year / Dictionary of the Russian language by S. I. Ozhegov - the very first one published in Russia (USSR) after the October Revolution and to date a unique one-volume explanatory dictionary of the Russian language. For the first time in Russian lexicography, a one-of-a-kind explanatory dictionary was compiled - a normative manual accessible to everyone, created to promote the improvement of the speech culture of the general public and designed to serve as a guide to the correct use of words, the correct formation of word forms, correct spelling and pronunciation. In this dictionary, from the entire huge variety of vocabulary of the modern literary Russian language, an extract was formed; the traditions of Russian literary speech that developed in the middle of the last century were described in a brief and accessible form. Work on the dictionary, which first appeared in 1949, began immediately before the Great Patriotic War. Prof. took part in the compilation of the initial edition of the dictionary. V. A. Petrosyan, G. O. Vinokur, as well as academician. S.P. Obnorsky as editor-in-chief.S. I. Ozhegov did not stop working on the dictionary until the end of his life, improving its composition and structure. In an expanded and revised version, the dictionary was published twice during his lifetime - 1960 and 1952 (the remaining versions were stereotypical). The second and fourth editions of the dictionary, revised by the author, were fundamentally different from the first in volume (it became larger by almost 40 author's pages) and also in content. S. I. Ozhegov was going to prepare a revised and expanded edition for publication, but death prevented the implementation of these plans.