A pair of semidetached houses can also be referred to as a duplex, semi, or twin home. These terms are often interchangeable and describe a housing style where two homes share a common wall and are often designed to look identical. Other synonyms include a double dwelling, linked house, or paired house. In some parts of the world, the term "demi-villas" may also be used to describe a pair of semidetached homes. Despite the different terminology, all of these phrases refer to a housing style that is often found in suburban or urban areas and provides residents with private outdoor space and shared amenities.