IntroductionSemantic change results in a change in the meaning of words, but this change does not happen overnight or all at once. On the contrary, it is a slow process of language evolution and these differences are only realized over time. There are many reasons to transform and change the meaning of a word. They can be adopted through the insertion of vocabulary from another language, through borrowing or even popular usage of a word in another context, resulting in its differentiation throughout the country where English is spoken. Historical linguistics deals with the process of semantic change over the years, explaining its alternation. This branch of linguistics treats a phenomenon under its scientific value in order to explain certain processes and assign names to it, such as enhancement, pejoration, broadening, semantic narrowing, whitening, metaphor and metonymy ( Nordquist, 2010). This essay will not explain each of these processes in detail because it is not of interest for the purpose of this work. Conversely, some words will be presented and the reasons why they changed will be discussed below, as well as how this change in semantics occurred on these words, leading the reader to understand certain semantic changes in the English history. Words and their transformations "Semantic change is not a change of meaning per se, but the addition of meaning to the semantic system or the loss of meaning from the semantic system while the form remains constant. (Planck, 1991:8). process ... middle of paper ... trees cannot be put aside because it is a trend in its semantic change Therefore, semantic changes cannot be confused with slang C'. is what we call “sublanguage”, “popular language” or even “slang”. Slangs are words that have nothing to do with the sentence. It is a linguistic variation. and the same word has another meaning, different from semantic changes. Slang or linguistic variation is shared by a restricted group (age or profession) which is used to exclude from communication other people who do not belong to the group. group of origin, thus reinforcing an emotional identity. Faced with these facts, when we study language as a phenomenon characterized by dynamism, it is possible to prove that all the elements that belonged to it (words, order of sentences, phonemes, among others) have undergone changes due to its evolution . A representative case of this type of change is semantic change..