eTwinning is a community of educational professionals which enables the implementation of projects, collaboration and exchange of knowledge. This paper will present the eTwinning project titled Developing Plurilingualism and Pluriculturalism in Pre-Primary Age carried out from October to December 2022. The project included preschool children and their teachers from three European countries: in addition to Croatia, the partner countries were Romania and Greece. In Croatia, in addition to the two groups of preschool children (n1 = 23 and n2 = 26) and their teachers, 11 students from the second and third year of the Early Childhood and Preschool Education programme at the Faculty of Education, University of Zagreb, Department in Petrinja, also participated in the project. All the participants worked on their development of communication in English as a foreign language and learnt about the partners’ culture, which was the main objective of the project. The preschool teachers and students in cooperation with their professors prepared presentations in English and conducted activities with the children in order to promote the value of their own and foreign cultures as well as their mother tongue and foreign language. The activities included learning songs and traditional Christmas customs, both their own and their partners’. Communication with the children and teachers from the partner countries was established via the Zoom platform.