У статті розглядається проблема визначення поняття «семи» як компонента значення слів, подано їхню типологію в сучасній лінгвістичній літературі. Досліджено особливості семного складу лексичних одиниць на позначення добра в англійській мові та з’ясовано його характер. (The article deals with the problem of definition of «seme» as a word meanings’ component and their typology in modern linguistic literature. The peculiarities of the seme stock of lexical units denoting good in English as well as its character are analyzed together with the qualitative and quantitative characteristics of semes. The study shows that the seme stock of the nouns denoting good in Modern English can be divided into 6 subsets, reflecting diverse shades of their meanings. The order and organization of semes in the seme stock under study is hierarchical. The obtained matrix gives an opportunity to investigate the seme stock as the unity of semantic features that possesses a definite structure. In the course of our analysis the semes which make up the meanings of the lexical units have been divided into polyfunctional and monofunctional according to frequency of their appearance in the lexical meanings of the nouns denoting good. Lexical units denoting good occupy an important place within the lexical system of any language because this notion belongs to the moral values, indicating moral norms, assessment, ideal, valuable orientation and moral qualities of the personality. Present understanding of good is inseparably connected with processes taking place in the social and political spheres of life, and leading to changes in the consciousness and mental perception of an individual. Thus, good is considered to be anthropocentric and socio-pragmatic notion referring to a person and serving to satisfy his/her social and everyday needs.)