Tenement
A tenement is, in most English-speaking areas, a substandard multi-family dwelling in the urban core, usually old and occupied by the poor. In Scotland it still has its original meaning of a multi-occupancy building of any sort, and in parts of England, especially Devon and Cornwall, it refers to an outshot, or additional projecting part at the back of a terraced house, normally with its own roof.
History
The term tenement originally referred to tenancy and therefore to any rented accommodation. The New York State legislature defined it in the Tenement House Act of 1867 in terms of rental occupancy by multiple households, as
In Scotland, it continues to be the most common word for a multiple-occupancy building, but elsewhere it is used as a pejorative in contrast to apartment building or block of flats. Tenement houses were either adapted or built for the working class as cities industrialized, and came to be contrasted with middle-class apartment houses, which started to become fashionable later in the 19th century. Late 19th-century social reformers in the U.S. were hostile to both tenements (for fostering disease, and immorality in the young) and apartment houses (for fostering "sexual immorality, sloth, and divorce.").