1º_ HD is an acronym with several developments in English, one of the most common used in Spanish is for High Definition ("high definition") that identifies audio and / or video equipment with a quality and resolution higher than the standard. See Hi-Fi. 2º_ In medicine it is a way of abbreviating "home hospitalization", but depending on the case it can also be "hemodialysis", "hepatitis D", . . .
HD acronyms generally derived from English terms, namely , 1 . High definition, or high definition, image improved with respect to the standard, reaching 1920x1080 pixels. It also applies to high resolution in sound. 2 . Hard Drive or Hard Drive 3. High density, or high density 4. Home Depot, American chain of construction items and items for home and office.