EN
Due to social changes, but also as a result of human cognitive openness, when reconstructing the meanings of words, contemporary lexical semantics should depart from colloquiality as the only descriptive criterion. The present work proposes the formula of the open definition of meaning. Apart from the semantic-colloquial conceptual center it should also take into consideration simplified scientific knowledge about the world and human creative abilities to produce special semantic transformations of a word that are observable, for example, in artistic texts or language games. The meaning of a word, alike the structure of a concept, is relative and open.