EN
The author proves the necessity of two different language descriptions in computer synthesis and analysis of texts. Later he discusses the information carried by inflexional forms of Polish nouns from the point of view of its range and quality. He distinguishes between lexical and inflexional information, its boundary being inconsistent with that of the root and the ending, since the information in the two is complementary as has been shown in the examples. The last part of the paper reviews the characteristics of endings of Polish noun declensions.