Semi-detached is a term commonly used to describe a type of housing where two homes share a common wall. However, there are several other terms that can be used to describe this type of housing. For example, the term duplex is used to describe a semi-detached building where two homes are side by side. The word terrace is often used to describe a row of semi-detached houses that share common walls. Another term that could be used is twin home, which describes two units joined by a common wall, but each with their own yard and entrance. Regardless of the term used, semi-detached homes are a popular choice for many homeowners due to their affordability and convenient location.