The question of enriching the vocabulary of a modern student is very relevant today. In the conditions of scientific progress, more and more new words come into use, many of which are difficult and incomprehensible. Therefore, the primary task of the Russian language teacher is to work on enriching and clarifying the vocabulary of schoolchildren: the more words a person owns, the more accurately communication between people is realized both in oral and written form. In order to improve speech culture, a prominent place should be occupied by exercises aimed at expanding the active vocabulary of children, as well as developing their ability to choose from their vocabulary to Express thoughts those words that most correspond to the content of the utterance and make it correct, accurate and expressive.