Our explanatory dictionary has 125 thousand. words, we selected 3 (three) most popular dictionaries and combined them together.

1. Tatyana Fedorovna Efremova, a modern explanatory dictionary of the Russian language, a former teacher of the Russian language at the school of the Academy of Applied Sciences of the USSR, candidate of philological sciences, she is also the author and editor of many other Russian language dictionaries.
The dictionary has more than 123 thousand words.

2. Explanatory dictionary of Ozhegov Sergey Ivanovich, Soviet linguist, a total of 28 editions were issued from 1949-2014. In 1997, the dictionary was revised by N. Yu. Shvedova, after which she became a co-author of the explanatory dictionary. From 2003 to 2014 dictionaries were published under the editorship of Professor L. I. Skvortsov, writer and doctor of sciences in philology.
The dictionary has more than 82 thousand words.

3. Explanatory dictionary of Dmitry Ushakov Ushakov, was a member of the organization of the spelling reform of Russia 1917-1918.
The dictionary has over 90 thousand words.