This research deals with the morphology, the meanings and the symbologies of 35 most frequent lexical creations in the British version of the Harry Potter series and of their linguistic correspondents belonging to the Brazilian version. In this sense, one of the aims of the research was to identify the most recurrent lexical creation processes among the words in both versions. Another aim was to verify whether the creative processes of the words that were not maintained in the target text influenced the morphological and lexical choices of the translator of the series in Brazil, in the creation of new lexical forms and in the use of words already existing in Portuguese in new contexts or with new meanings, in the target text. For both aims, the creative processes and the primary meanings of the words in question were described. Also, to facilitate the consultation of the analysed lexical creations and to contextualise them, a bilingual glossary was elaborated. Furthermore, among the obtained data, the words Dumbledore, Malfoy and Quirrell, which were maintained in translation, were selected, in order to carry out a comparative and detailed analysis about the symbolic relations involving these three words, in the source and target texts. In theoretical and methodological terms, translation was considered as an interpretative activity that produces meanings and never escapes the hierarchy of cultural values existing in the target language. Furthermore, the presuppositions from Corpus Linguistics and Corpus-Based Translation Studies, as well as those from lexical and morphological theories that are relevant to understand and to describe lexical creation phenomena, were employed. To extract the data, a parallel corpus containing the source and target texts of the series, the software WordSmith Tools (version 6.0), lexicographical works and the corpora British National Corpus (World Version) and Lácio-Ref were used. In respect of the results, composition by juxtaposition and the change from common name to proper name were found to be the most recurrent creative processes among the 35 most frequent lexical creations in the source text. Also among these creations, most (19) was found to have been maintained in the translated text. Concerning the 16 words in the target text that correspond to the other 16 lexical creations belonging to the source text, it was identified that the most frequent creative processes among them are the change from common name to proper name and other processes that were not found in the consulted bibliography. When comparing these 16 words with their correspondents in the source text, it was observed that this comparison does not permit to verify whether the translator’s morphological and lexical choices were influenced by the creative processes of these correspondents. The words showed that other factors can have influenced these choices, namely: meanings of the source word, the fact that the source word is or arouses the etymon of the target word, structure of the source word, a certain characteristic of the referent, system of the target language. Through the symbolic analyses of the words Dumbledore, Malfoy and Quirrell, it was verified that the translated text breaks symbolic nets, whilst maintaining relations and meanings, generating new meanings and new relations and conveying cultural features of the target language.