In all languages, humans frequently use linguistic combinations called phraseological units (PUs) in communicative acts. These PUs are characterized by their institutionalized fixation and, in many cases, by their opacity. Traditionally, the work on phraseology has placed the emphasis on the total fixing of components and structures of verbal expressions. Variation in PUs is currently an uncontested fact and has been extensively studied and analyzed. In addition, in the case of languages like Spanish, English, French, spoken in many countries, new creations or diatopic variants arise. While...