tall building; as opposed to a low-rise building
A high-rise building is a tall building, as opposed to a low-rise building and is defined by its height differently in various jurisdictions. It is used as a residential, office building, or other functions including hotel, retail, or with multiple purposes combined. Residential high-rise buildings are also known as tower blocks and may be referred to as "MDUs", standing for "multi-dwelling unit". A very tall high-rise building is referred to as a skyscraper.