Vocabulary of current children's population

The submitted thesis is focused on lexical - semantic level of language in children in pre- school age. The focuses of thesis is on expressive and receptive vocabulary. The first part of thesis outlines the theoretical basis with using literature. It discusses the development of speech in terms of language levels, diagnose and develop of vocabulary and personality of preschool child. The practical part describes own research of vocabulary, which was carried out using the Test of expressive and receptive vocabulary, that was created on the basis of CREVT-2 foreign test and evaluates the level of vocabulary. The testing was realized in four kindergartens. The intact population of children in age 4, 5, 6 to 7 years was testing. Various age groups are compared with each other and they are investigated differences between them. The research part evaluates the level of expressive and receptive vocabulary of preschool children and should point out on importance of developing the vocabulary at this age