Among the skills that UNESCO has proposed for students of the 21st century, and by extension for future professionals, this work aims to address, within the group of Communication and Collaboration, the ability to integrate the names of construction materials and the concepts used in different disciplines or fields of knowledge into a coherent whole, and to communicate this integration to others.

Although various educational institutions offering degrees related to the field of building emphasize the use of specialized terminology, the issue identified in professional practice is the loss of language specificity in the field of construction, which can extend to other disciplines.

Specifically, in the construction profession, the terminology used is not only not strictly academic, but it has been observed in situ during professional practice that there are numerous names used for the same material by construction personnel, including names for products derived from the mixing of materials or the execution of work units. This study suggests that workers may have acquired practical knowledge but not theoretical knowledge. This deficiency can be critical in understanding, especially in multinational teams, for communication in both the development and execution of projects.

It can be considered that terminology may vary across different regions and countries, even when the same language is used. However, this factor becomes weaker in any specific field during professional practice, as it gets contaminated by the everyday language used by other professionals involved in the project. This circumstance may be overlooked because people ultimately manage to understand each other and complete both design and material execution projects, but it poses challenges for effective teamwork, delaying project planning, and even causing deficiencies in the execution of different work units.

Through a qualitative methodology, specifically using questionnaires, this study aims to determine the degree of unfamiliarity with specific language among professionals and how this affects the development of different work units. These questionnaires will be sent to students from the School of Building Engineers and higher-level vocational training centers, as well as to practicing professionals with higher degrees, through the Association of Building Engineers, Technical Architects, and Quantity Surveyors, in order to assess practical knowledge and theoretical knowledge and how both impact project execution.

It is considered that students will show good theoretical knowledge, while practicing professionals will show more "contamination" of the terminology, so to speak, and they will be the ones who demonstrate both the loss of specific language and the attributable problems.

Keywords: Group of Communication, Collaboration, Teamwork, Multinational Teams, Execution of the Project, Communication.