The Dictionary gives root words that, due to their some similarity, are sometimes mixed in use (breath - sigh, dwelling - residential, put on - put on, unbearable - intolerant, ignoramus - ignoramus, provide - present, etc.). The dictionary entry interprets the meanings of these words, provides combinations in which these words are used, shows the features of their grammatical control, and also emphasizes the peculiarity of the use of each of these words in speech, gives examples of their incorrect use. The dictionary serves to increase the culture of speech.