In this study I want to present the dictionaries present in the Art of Andr & eacute;s Febr & eacute;s, since there has not been a study of the type until now. I will understand these dictionaries as speeches and tools at the service of evangelization and spiritual conquest as the ultimate goal. I want to analyze three aspects in them: how they are built from inter and transcultural dynamics; to account for a sample field as a specialty lexicon and to exemplify lexical transfers and the state of the language in the mid-eighteenth century.