43 Definitions Augmented Reality (AR) - interactive experience of a real-world environment that overlays digital content and information onto the physical world by using the camera on a smartphone or Snapchat lenses. A system that incorporates three basic features: a combination of real and virtual worlds, real-time interaction, and accurate 3D registration of virtual and real objects. Extended Reality (XR) - umbrella term that covers all of the various technologies that enhance our senses, whether they’re providing additional information about the actual world or creating totally unreal, simulated worlds for us to experience. It includes Virtual Reality (VR), Augmented Reality (AR) and Mixed Reality (MR). GDP(Gross domestic product) - a monetary measure of the market value of all the final goods and services produced in a AL specific time period. GDPPerCapita-measurestheaverageincomeearnedperpersoninagivenareainaspecifiedyear. Mixed Reality (MR) - combines elements of both AR and VR, where real-world and digital objects interact. Example: Microsoft’s HoloLens. OF PHYGITE OECD(TheOrganisation for Economic Co-operation and Development) - an intergovernmental economic organisation with AT 38membercountries,foundedin1961tostimulateeconomicprogressandworldtrade. Phygital – set of technologies which enables the close integration of the virtual environment (digital) into real human life ST (physical). Virtual reality (VR) - implies a complete immersion experience that shuts out the physical world. WorldHealthOrganization(WHO)-aspecializedagencyoftheUnitedNationsresponsibleforinternationalpublichealth. 2021