The article deals with the specifics of one of the most frequent words of everyday Russian discourse – the word NET, which is able to functioning in oral speech as a particle (negative, intensifying, interrogative), and as a non-particle (predicative, non-divisible word-sentence, equivalent of the word, word combination or the whole sentence with the negation, when opposed), and also forms the stable constructions-collocations of type NET Gen / Gen NET (net sil / sil net, net problem) or P (aut) NET? (Id’оsh’ ili net? Ponyal – net?). This word no doubt requires the separate lexicographical “portrayal”, important in various theoretical and applied purposes.