The thesis is divided into two parts. The first part is
theoretical and includes of three chapters. The second
practical part has one chapter and deals with the
characteristics of communication of children of preschool age.
The theoretical part is based on study and is followed by
analysis of literature. The first chapter deals with concepts
such as communication, verbal and nonverbal communication,
language and speech. The second chapter describes the child of
preschool age, its personal development and the important role
of school and family in the actual development of the child.
The third chapter is dedicated to vocabulary, where are
discussed the linguistic levels (especially lexical- semantic)
and its division into active and passive vocabulary.
The practical part presents the research, which was carried out
by interview with a child of preschool age in the home
environment. The aim of this research was to analyze  the
vocabulary of a child of preschool age, then determine the
child´s ability to answer in fluent sentences, use of the most
frequent parts of speech in communication and to develop the
casuistry of the monitored child with a focus on personal and
family medical history. The basis of the research was content
analysis of transcribed audio recordings. At the end of the
research are then introduced result of the practical part.