Everyday human language is a result of constant historical changes, influences of other languages, and the human mind. Language and our mind play the central role in the process of communication as a base of human life. All beings communicate on some level but it is with the human beings that this communication is most evident. We understand the concepts dually, metaphorically and literally. This paper discusses the role of cognitive mechanisms in the English language. In other words, this paper discusses the metaphorical usage of kinship terms. The first chapter of the paper deals with the theoretical approaches to metaphor, both traditional and conceptual. The concept of metaphor is explained in comparison to simile and metonymy as two figures of speech very similar to metaphor. However, the conceptual metaphor is defined in the terms of cognitive mechanisms, source and target domains, and correspondences between the two domains. The second chapter of the paper approaches the English language in the terms of language families and the relatedness between the languages. Furthermore, a short history of events that have influence the English language through the centuries is given. In the third chapter of this paper, the concept of kinship metaphor is discussed theoretically based on the scholars and researchers’ studies of the usage of the kinship related terms in English language on a metaphorical basis. Lastly, the paper discusses the corpus of the kinship metaphors in the English language. This corpus was researched from the point of etymological study of the nouns of kinship terms and the usage of said terms in the modern English language. The terms were studied with the earliest meanings of the nouns related to kinship, and brought in this paper from the point of every kinship word (mother, father, etc.) and the corresponding metaphorical expressions.